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12.31ct H VS1 Round Natural Diamond

EX • H/VS1 • HRD 260000028947

Certificate HRD 260000028947

Diamond specifications and retailer prices

From £255,048 GBP
As of October 31, 2026
Save £68,505 GBP (21%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £323,553 GBP at Yorxs · As of November 1, 2026
View at Yorxs

About this 12.31ct natural round diamond

This 12.31ct natural round sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by HRD 260000028947. Listed at 2 retailers as of October 31, 2026, with prices from £255,048 to £323,553, a £68,505 spread on the same certified stone. Yorxs lists it at £323,553. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

12.31
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 260000028947
Dimensions15.12 × 15.17 × 8.96 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
15.12 mm15.17 mm12.31 ctH / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 260000028947
Side View
Table 61.0%CrownGirdle: ThinPavilionCulet: NoneDepth 59.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £255,048 GBP|Low: £255,048 GBP|High: £325,840 GBP|Avg: £290,555 GBP|-0.9%
Retailer 1
Yorxs
November 1, 2026
Retailer 1£255,048 GBP
Yorxs£323,553 GBP

17 data points across 2 retailers

2 retailers£255,048 GBP to £323,553 GBP

A
Cheapest Retailer
-
£255,048 GBP
Most Expensive
B+
Yorxs
622902752 · Nov 1
£323,553 GBP
€412,881 EUR
View
1 more retailer has this diamond
Prices start from £255,048 GBPSave up to £68,505 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
12.31ct Round
£255,048 GBP