Round|Natural|GIA

6.31ct D FL Round Natural Diamond

EX • D/FL • GIA 1232775898

Certificate GIA 1232775898

Diamond specifications and retailer prices

From $392,379 USD
£308,960 GBP
As of October 29, 2026
Save $253,021 USD (39%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $645,400 USD at MOH London · As of October 29, 2026
View at MOH London

About this 6.31ct natural round diamond

This 6.31ct natural round sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 1232775898. Listed at 5 retailers as of October 29, 2026, with prices from $392,379 to $645,400, a $253,021 spread on the same certified stone. MOH London lists it at $645,400. 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

6.31
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1232775898
Dimensions11.78 × 11.81 × 7.32 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
False
Top View
11.78 mm11.81 mm6.31 ctD / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232775898
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $645,400 USD|Low: $377,880 USD|High: $649,696 USD|Avg: $459,562 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 4$382,590 USD
Retailer 3$392,379 USD
Retailer 5$401,407 USD
Retailer 6$428,311 USD
Retailer 2$498,752 USD
MOH London$645,400 USD

30 data points across 6 retailers

5 retailers$392,379 USD to $645,400 USD

Retailer 1
-
$382,590 USD
A$588,599 AUD
Price last confirmed 28 days ago
A
Retailer 2
-
$392,379 USD
£308,960 GBP
View
A
Retailer 3
-
$428,311 USD
View
B+
Retailer 4
-
$498,752 USD
€475,002 EUR
View
Most Expensive
B
MOH London
737004D7B · Oct 29
$645,400 USD
£508,189 GBP
View
4 more retailers have this diamond
Prices start from $392,379 USDSave up to $253,021 USD

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
6.31ct Round
$392,379 USD