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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 €22,024 EUR
$24,605 USD
As of November 1, 2026
Save €13,078 EUR (37%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €35,102 EUR 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 27, 2026, with prices from €22,024 to €35,102, a €13,078 spread on the same certified stone. Cape Diamonds lists it at €35,102. 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: Nov 1
Current: €35,102 EUR|Low: €22,024 EUR|High: €38,795 EUR|Avg: €27,489 EUR|+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
November 1, 2026
Retailer 11€22,024 EUR
Retailer 12€22,265 EUR
Retailer 2€23,667 EUR
Retailer 8€23,687 EUR
Retailer 4€24,105 EUR
Retailer 9€25,703 EUR
Retailer 5€25,841 EUR
Retailer 10€26,001 EUR
Retailer 7€27,554 EUR
Retailer 3€29,665 EUR
Retailer 6€29,806 EUR
Cape Diamonds€35,102 EUR
Retailer 13€38,744 EUR

36 data points across 13 retailers

13 retailers€22,024 EUR to €35,102 EUR

B+
Cheapest Retailer
-
€22,024 EUR
$24,605 USD
B+
Retailer 2
-
€22,265 EUR
$24,875 USD
View
B+
Retailer 3
-
€23,667 EUR
₹2,518,184 INR
View
B
Retailer 4
-
€23,687 EUR
$26,463 USD
View
B+
Retailer 5
-
€24,230 EUR
A$41,646 AUD
View
B
Retailer 6
-
€25,703 EUR
$28,715 USD
View
Retailer 7
-
€25,703 EUR
$28,715 USD
View
Price last confirmed 11 days ago
Retailer 8
-
€25,841 EUR
$28,870 USD
View
Price last confirmed 43 days ago
B
Retailer 9
-
€26,001 EUR
$29,048 USD
View
B
Retailer 10
-
€27,554 EUR
£24,239 GBP
View
Retailer 11
-
€29,665 EUR
$33,142 USD
View
Price last confirmed 39 days ago
B
Retailer 12
-
€29,806 EUR
View
Most Expensive
B
Cape Diamonds
cert_1549103009 · Oct 27
€35,102 EUR
ZAR 633,536 ZAR
View
12 more retailers have this diamond
Prices start from €22,024 EURSave up to €13,078 EUR

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
€22,024 EUR