Round|Natural|GIA

6.90ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 5171957272

Certificate GIA 5171957272

Diamond specifications and retailer prices

From $209,065 USD
As of November 1, 2026
Save $167,973 USD (45%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $377,038 USD at MOH London · As of November 1, 2026
View at MOH London

About this 6.9ct natural round diamond

This 6.9ct natural round sits in the over five carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5171957272. Listed at 7 retailers as of November 1, 2026, with prices from $209,065 to $377,038, a $167,973 spread on the same certified stone. MOH London lists it at $377,038. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

6.90
Carat
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5171957272
Dimensions12.33 × 12.28 × 7.46 mm
L/W Ratio1.00
Star length45%
Lower girdle80%
Top View
12.33 mm12.28 mm6.90 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5171957272
Side View
Table 59.0%Crown 34.5°Girdle: ThickPavilion 41.2°Culet: NoneDepth 60.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $377,038 USD|Low: $201,181 USD|High: $381,580 USD|Avg: $250,326 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7$209,065 USD
Retailer 5$213,818 USD
Retailer 6$217,276 USD
Retailer 9$219,884 USD
Retailer 3$233,423 USD
Retailer 4$251,477 USD
Retailer 2$252,870 USD
Retailer 8$283,442 USD
MOH London$377,038 USD

31 data points across 9 retailers

7 retailers$209,065 USD to $377,038 USD

B+
Cheapest Retailer
-
$209,065 USD
B+
Retailer 2
-
$213,818 USD
View
B+
Retailer 3
-
$217,276 USD
View
Final sale: no returns
B+
Retailer 4
-
$233,423 USD
£183,798 GBP
View
B
Retailer 5
-
$251,477 USD
View
B
Retailer 6
-
$252,870 USD
£199,110 GBP
View
Most Expensive
B
MOH London
27C7C6836 · Nov 1
$377,038 USD
£296,880 GBP
View
6 more retailers have this diamond
Prices start from $209,065 USDSave up to $167,973 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.

B+
6.90ct Round
$209,065 USD