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Round|Natural|GIA

2.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1549103009

Certificate GIA 1549103009

Diamond specifications and retailer prices

From $34,371 CAD
$24,605 USD
As of October 25, 2026
Save $20,410 CAD (37%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $54,781 CAD at Cape Diamonds · As of October 27, 2026
View at Cape Diamonds

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 1549103009. Listed at 13 retailers as of October 25, 2026, with prices from $34,371 to $54,781, a $20,410 spread on the same certified stone. Cape Diamonds lists it at $54,781. 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 angle32.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1549103009
Dimensions8.94 × 8.88 × 5.21 mm
L/W Ratio1.01
Girdle conditionMedium
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
8.94 mm8.88 mm2.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549103009
Side View
Table 61.0%Crown 32.5°Girdle: MediumPavilion 41°Culet: NoneDepth 58.4%

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 25
Current: $54,781 CAD|Low: $34,371 CAD|High: $60,545 CAD|Avg: $43,834 CAD|+1.4%
Cape Diamonds
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
October 31, 2026
Retailer 12$34,371 CAD
Retailer 13$34,748 CAD
Retailer 2$36,943 CAD
Retailer 7$36,966 CAD
Retailer 4$37,619 CAD
Retailer 10$40,112 CAD
Retailer 5$40,329 CAD
Retailer 11$40,577 CAD
Retailer 8$43,001 CAD
Retailer 3$46,296 CAD
Retailer 9$46,843 CAD
Retailer 6$54,337 CAD
Cape Diamonds$54,781 CAD
Retailer 14$60,465 CAD

36 data points across 14 retailers

13 retailers$34,371 CAD to $54,781 CAD

B+
Cheapest Retailer
-
$34,371 CAD
$24,605 USD
B+
Retailer 2
-
$34,748 CAD
$24,875 USD
View
B+
Retailer 3
-
$36,943 CAD
₹2,518,729 INR
View
B
Retailer 4
-
$36,966 CAD
$26,463 USD
View
B+
Retailer 5
-
$37,814 CAD
A$41,646 AUD
View
B
Retailer 6
-
$40,112 CAD
$28,715 USD
View
Retailer 7
-
$40,112 CAD
$28,715 USD
View
Price last confirmed 10 days ago
Retailer 8
-
$40,329 CAD
$28,870 USD
View
Price last confirmed 42 days ago
B
Retailer 9
-
$40,577 CAD
$29,048 USD
View
B
Retailer 10
-
$43,001 CAD
£24,239 GBP
View
Retailer 11
-
$46,296 CAD
$33,142 USD
View
Price last confirmed 38 days ago
B
Retailer 12
-
$46,843 CAD
€31,937 EUR
View
Most Expensive
B
Cape Diamonds
cert_1549103009 · Oct 27
$54,781 CAD
ZAR 633,536 ZAR
View
12 more retailers have this diamond
Prices start from $34,371 CADSave up to $20,410 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
$34,371 CAD