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Round|Natural|GIA

2.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2544271085

Certificate GIA 2544271085

Diamond specifications and retailer prices

From $23,429 CAD
$16,772 USD
As of October 29, 2026
Save $31,693 CAD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $55,122 CAD at MOH London · As of October 29, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2544271085. Listed at 17 retailers as of October 29, 2026, with prices from $23,429 to $55,122, a $31,693 spread on the same certified stone. MOH London lists it at $55,122. 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
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2544271085
Dimensions8.59 × 8.65 × 5.40 mm
L/W Ratio1.01
Top View
8.59 mm8.65 mm2.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2544271085
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

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: $55,122 CAD|Low: $23,068 CAD|High: $55,489 CAD|Avg: $37,354 CAD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 12$23,429 CAD
Retailer 3$30,369 CAD
Retailer 6$31,879 CAD
Retailer 5$33,643 CAD
Retailer 7$34,182 CAD
Retailer 14$35,107 CAD
Retailer 9$35,415 CAD
Retailer 4$35,941 CAD
Retailer 11$36,861 CAD
Retailer 8$39,397 CAD
Retailer 2$39,495 CAD
Retailer 10$42,707 CAD
Retailer 13$48,286 CAD
Retailer 15$49,734 CAD
MOH London$55,122 CAD

32 data points across 15 retailers

17 retailers$23,429 CAD to $55,122 CAD

A
Cheapest Retailer
-
$23,429 CAD
$16,772 USD
B+
Retailer 2
-
$30,369 CAD
$21,740 USD
View
B+
Retailer 3
-
$31,879 CAD
$22,821 USD
View
B+
Retailer 4
-
$31,962 CAD
$22,881 USD
View
B+
Retailer 5
-
$33,643 CAD
$24,084 USD
View
Final sale: no returns
B
Retailer 6
-
$34,182 CAD
$24,470 USD
View
B
Retailer 7
-
$35,107 CAD
$25,132 USD
View
B
Retailer 8
-
$35,415 CAD
£19,963 GBP
View
B
Retailer 9
-
$35,941 CAD
$25,729 USD
View
B
Retailer 10
-
$36,861 CAD
$26,388 USD
View
B
Retailer 11
-
$37,525 CAD
$26,863 USD
View
B+
Retailer 12
-
$39,397 CAD
£22,207 GBP
View
B
Retailer 13
-
$39,495 CAD
$28,273 USD
View
B
Retailer 14
-
$42,707 CAD
€29,117 EUR
View
B
Retailer 15
-
$48,286 CAD
ZAR 558,427 ZAR
View
B
Retailer 16
-
$49,734 CAD
$35,603 USD
View
Most Expensive
B
MOH London
374279A59 · Oct 29
$55,122 CAD
£31,071 GBP
View
16 more retailers have this diamond
Prices start from $23,429 CADSave up to $31,693 CAD

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
2.51ct Round
$23,429 CAD