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1.25 carat Portuguese diamond

IGI report 807655804 · River Stone reference RSD-7CBD3592AF26

Search identifier: LG807655804

1.25 ct D Portuguese

A listed lab-grown diamond. We confirm the current supplier listing and final details before any order is finalized.

River Stone price$799$639/ct

Current price. No artificial markdowns.

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Color
D
Clarity
VVS2
Growth method
CVD
Grading lab
IGI
Report number
807655804
Polish
EX
Symmetry
EX
Depth
0.0000%Documented detail Supplier-reported proportion
Table
56.0000%Documented detail Supplier-reported proportion
Fluorescence
NONE
Measurements
6.61 x 6.62 x 4.35Length-to-width ratio 1.002:1 - Documented detail Measured outline ratio - Measured outline detail

Diamond intelligence

Quality analysis, shown honestly.

Score active - partial evidence

This score shows how closely the documented details match River Stone selection standards. It is not a laboratory grade or appraisal.

Shape modelPortugueseMapped from PORTUGUESE
Data readiness13/14 fieldsRequired for this analysis
RSD Selection Score93/100Evidence 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 fit9/10
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 Portuguese evidence profile

This 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
56.00%
Documented detailSupplier-reported proportion
Reported
Length-to-width ratio
1.00:1
Documented detailMeasured outline ratio
Reported
Face-up measurements
6.61 x 6.62 x 4.35
Documented detailMeasured outline
Reported

This score compares the documented details with River Stone selection standards. It is not a laboratory grade or appraisal.

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.

1.20 carat Portuguese pairing candidate
79%Worth comparing

Portuguese pair candidate

1.20 ct Portuguese

E color, VVS2 clarity, IGI

0.05 ct weight difference · 1.8% face-up variance

The dimensions are close enough to compare, but a difference may be visible side by side.

Review match
1.21 carat Portuguese pairing candidate
77%Worth comparing

Portuguese pair candidate

1.21 ct Portuguese

E color, VS1 clarity, IGI

0.04 ct weight difference · 2.5% face-up variance

The dimensions are close enough to compare, but a difference may be visible side by side.

Review match

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.

Interactive diamond view

1.25 ct Portuguese

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