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1.51ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 5231835612

Certificate GIA 5231835612

Diamond specifications and retailer prices

From $4,070 USD
HK$31,800 HKD
As of November 1, 2026
Save $4,543 USD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,613 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5231835612. Listed at 14 retailers as of November 1, 2026, with prices from $4,070 to $8,613, a $4,543 spread on the same certified stone. MOH London lists it at $8,613. 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

1.51
Carat
F
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5231835612
Dimensions7.28 × 7.31 × 4.54 mm
L/W Ratio1.00
Top View
7.28 mm7.31 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5231835612
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.3%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $8,613 USD|Low: $4,070 USD|High: $8,919 USD|Avg: $5,605 USD|-3.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 11$4,070 USD
Retailer 10$4,272 USD
Retailer 9$4,522 USD
Retailer 12$4,644 USD
Retailer 6$4,860 USD
Retailer 8$4,910 USD
Retailer 2$5,242 USD
Retailer 4$5,466 USD
Retailer 7$5,741 USD
Retailer 5$6,096 USD
Retailer 3$8,612 USD
MOH London$8,613 USD

27 data points across 12 retailers

14 retailers$4,070 USD to $8,613 USD

A
Cheapest Retailer
-
$4,070 USD
HK$31,800 HKD
A
Retailer 2
-
$4,272 USD
View
A
Retailer 3
-
$4,522 USD
View
Final sale: no returns
A
Retailer 4
-
$4,644 USD
View
A
Retailer 5
-
$4,860 USD
View
A
Retailer 6
-
$4,910 USD
View
A
Retailer 7
-
$5,242 USD
£4,127 GBP
View
A
Retailer 8
-
$5,466 USD
SGD 7,386 SGD
View
A
Retailer 9
-
$5,582 USD
A$8,588 AUD
View
A
Retailer 10
-
$5,741 USD
£4,521 GBP
View
A
Retailer 11
-
$6,096 USD
€5,806 EUR
View
Retailer 12
-
$6,314 USD
View
Price last confirmed 16 days ago
Retailer 13
-
$8,612 USD
View
Price last confirmed 10 days ago
Most Expensive
B+
MOH London
16F4FA1BA · Nov 2
$8,613 USD
£6,782 GBP
View
13 more retailers have this diamond
Prices start from $4,070 USDSave up to $4,543 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
1.51ct Round
$4,070 USD