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2.51ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2568369621

Certificate GIA 2568369621

Diamond specifications and retailer prices

From $26,573 USD
HK$207,600 HKD
As of November 1, 2026
Save $21,395 USD (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $47,968 USD at MOH London · As of November 2, 2026
View at MOH London

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2568369621. Listed at 14 retailers as of November 1, 2026, with prices from $26,573 to $47,968, a $21,395 spread on the same certified stone. MOH London lists it at $47,968. 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

2.51
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2568369621
Dimensions8.60 × 8.66 × 5.44 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
8.60 mm8.66 mm2.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2568369621
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 63.1%

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: $47,968 USD|Low: $26,048 USD|High: $48,224 USD|Avg: $32,643 USD|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 3$26,573 USD
Retailer 4$27,186 USD
Retailer 5$27,202 USD
Retailer 11$28,154 USD
Retailer 6$28,722 USD
Retailer 15$29,480 USD
Retailer 7$30,332 USD
Retailer 14$31,994 USD
Retailer 8$32,249 USD
Retailer 10$33,273 USD
Retailer 9$33,874 USD
Retailer 12$33,905 USD
Retailer 13$34,553 USD
Retailer 2$36,231 USD
MOH London$47,968 USD

28 data points across 15 retailers

14 retailers$26,573 USD to $47,968 USD

B+
Cheapest Retailer
-
$26,573 USD
HK$207,600 HKD
B+
Retailer 2
-
$27,186 USD
View
B+
Retailer 3
-
$28,154 USD
View
Final sale: no returns
Retailer 4
-
$28,722 USD
SGD 38,814 SGD
View
Price last confirmed 23 days ago
B+
Retailer 5
-
$29,480 USD
View
Retailer 6
-
$30,332 USD
A$46,664 AUD
View
Price last confirmed 30 days ago
B+
Retailer 7
-
$31,994 USD
View
B+
Retailer 8
-
$32,249 USD
View
B+
Retailer 9
-
$33,273 USD
View
B+
Retailer 10
-
$33,874 USD
£26,673 GBP
View
B
Retailer 11
-
$33,905 USD
View
B+
Retailer 12
-
$34,553 USD
View
B
Retailer 13
-
$36,231 USD
€34,506 EUR
View
Most Expensive
B
MOH London
834E400EB · Nov 2
$47,968 USD
£37,770 GBP
View
13 more retailers have this diamond
Prices start from $26,573 USDSave up to $21,395 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+
2.51ct Round
$26,573 USD