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Round|Natural|GIA

2.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6422459741

Certificate GIA 6422459741

Diamond specifications and retailer prices

From $39,127 CAD
$28,010 USD
As of October 30, 2026
Save $28,351 CAD (42%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $67,478 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 6422459741. Listed at 13 retailers as of October 29, 2026, with prices from $39,127 to $67,478, a $28,351 spread on the same certified stone. MOH London lists it at $67,478. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6422459741
Dimensions8.71 × 8.74 × 5.38 mm
L/W Ratio1.00
Top View
8.71 mm8.74 mm2.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6422459741
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.7%

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: Oct 30
Current: $67,478 CAD|Low: $35,814 CAD|High: $67,927 CAD|Avg: $48,821 CAD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 7$38,452 CAD
Retailer 5$39,395 CAD
Retailer 6$42,925 CAD
Retailer 3$43,197 CAD
Retailer 2$52,144 CAD
Retailer 4$59,110 CAD
MOH London$67,478 CAD

39 data points across 7 retailers

13 retailers$39,127 CAD to $67,478 CAD

B+
Cheapest Retailer
-
$39,127 CAD
$28,010 USD
B+
Retailer 2
-
$39,395 CAD
$28,202 USD
View
Final sale: no returns
Retailer 3
-
$42,925 CAD
A$47,275 AUD
View
Price last confirmed 27 days ago
B
Retailer 4
-
$42,976 CAD
$30,765 USD
View
B
Retailer 5
-
$43,197 CAD
£24,349 GBP
View
B
Retailer 6
-
$43,645 CAD
$31,244 USD
View
B
Retailer 7
-
$44,766 CAD
$32,047 USD
View
B
Retailer 8
-
$45,125 CAD
$32,304 USD
View
B
Retailer 9
-
$46,557 CAD
$33,329 USD
View
B
Retailer 10
-
$48,348 CAD
$34,611 USD
View
B
Retailer 11
-
$52,144 CAD
€35,551 EUR
View
B
Retailer 12
-
$59,110 CAD
ZAR 683,609 ZAR
View
Most Expensive
B
MOH London
F205D9262 · Oct 29
$67,478 CAD
£38,036 GBP
View
12 more retailers have this diamond
Prices start from $39,127 CADSave up to $28,351 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.

B+
2.51ct Round
$39,127 CAD