89%Strong pairing
Old Mine pair candidate
1.91 ct Old Mine
D color, VS1 clarity, IGI
0.01 ct weight difference · 1.5% face-up variance
The face-up size difference should be subtle, subject to outline and facet-pattern review.
IGI report 818623154 · River Stone reference RSD-EECDF32FDABE
Search identifier: LG818623154
1.90 ct D Old Mine
A listed lab-grown diamond. We confirm the current supplier listing and final details before any order is finalized.
River Stone price$1,399$736/ct
Current price. No artificial markdowns.
Secure this diamondContinue directly to secure checkout. Your card is authorized first and captured only after the supplier confirms this exact diamond.
- Color
- D
- Clarity
- VS1
- Growth method
- CVD
- Grading lab
- IGI
- Report number
- 818623154
- Polish
- EX
- Symmetry
- EX
- Depth
- 0.0000%Documented detail Supplier-reported proportion
- Table
- 50.0000%Documented detail Supplier-reported proportion
- Fluorescence
- NONE
- Measurements
- 9.55 x 6.4 x 4.07Length-to-width ratio 1.492:1 - Documented detail Measured outline ratio - Measured outline detail
Diamond intelligence
Quality analysis, shown honestly.
This score shows how closely the documented details match River Stone selection standards. It is not a laboratory grade or appraisal.
Shape modelOld MineMapped from OLD MINER
Data readiness13/14 fieldsRequired for this analysis
RSD Selection Score92/100Evidence partial
At a glance
- The diamond's shape has an established catalog name.
- Depth percentage is not available in this current record; the score is limited accordingly.
- The RSD Selection Score is calculated automatically from feed evidence.
How this score is calculatedSix signals, 100 points
Record completeness19/20
Required report details are present.
Polish and symmetry20/20
Reported finish grades are present; an overall cut grade is not required for this shape.
Color fit10/10
Color is compared with the River Stone selection range.
Clarity fit8/10
Clarity is compared with the River Stone selection range.
Shape and proportion evidence25/30
Documented measurements, depth and table are shown as shape-specific evidence.
Image and 360 media10/10
Customer-facing image and 360 media are available.
Proportion check
RSD Old Mine evidence profileThis named vintage or rose-cut shape uses a shape-specific evidence profile. RSD records documented proportions and facet evidence without inventing a universal numeric ideal. Facet pattern, contrast pattern and outline symmetry are reserved for future media analysis.
Depth
Not available
Documented detailSupplier-reported proportion
Not provided
Table
50.00%
Documented detailSupplier-reported proportion
Reported
Length-to-width ratio
1.49:1
Documented detailMeasured outline ratio
Reported
Face-up measurements
9.55 x 6.4 x 4.07
Documented detailMeasured outline
Reported
This score compares the documented details with River Stone selection standards. It is not a laboratory grade or appraisal.
Wear it
See its presence before you choose a setting.
Compare this diamond at its documented millimeter size on a hand, as a pendant, or as an earring. The photography is a neutral visual reference; final presence also depends on the setting and perspective.
9.55 x 6.4 x 4.07 mm1.90 ct Old Mine
Scale guide
On hand · 1.90 ct · 9.55 x 6.4 x 4.07
Matched by proportion
Complete the pair.
Potential companions for stud earrings or a balanced two-stone design, ranked by carat, face-up dimensions, color, clarity and finish.
What does "face-up variance" mean?
It is the average percentage difference in visible length and width when the diamonds are viewed from above. It describes apparent size, not depth, total carat weight or facet pattern. Lower is closer, and a matched pair is confirmed by comparing the two stones together.
86%Strong pairing
Old Mine pair candidate
1.90 ct Old Mine
D color, VVS2 clarity, IGI
0.00 ct weight difference · 3.1% face-up variance
The dimensions are close enough to compare, but a difference may be visible side by side.
83%Worth comparing
Old Mine pair candidate
1.90 ct Old Mine
E color, VS1 clarity, IGI
0.00 ct weight difference · 2.4% face-up variance
The dimensions are close enough to compare, but a difference may be visible side by side.
82%Worth comparing
Old Mine pair candidate
1.94 ct Old Mine
D color, VVS2 clarity, IGI
0.04 ct weight difference · 2.2% face-up variance
The dimensions are close enough to compare, but a difference may be visible side by side.
80%Worth comparing
Old Mine pair candidate
1.92 ct Old Mine
D color, VS1 clarity, IGI
0.02 ct weight difference · 3.0% face-up variance
The dimensions are close enough to compare, but a difference may be visible side by side.
79%Worth comparing
Old Mine pair candidate
1.86 ct Old Mine
D color, VVS2 clarity, IGI
0.04 ct weight difference · 3.5% face-up variance
The dimensions are close enough to compare, but a difference may be visible side by side.
Matching scores narrow the field; they do not replace side-by-side video and certificate review. River Stone Diamonds will personally verify the final pair.