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2.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1549103009

Certificate GIA 1549103009

Diamond specifications and retailer prices

From €21,937 EUR
$24,605 USD
As of November 1, 2026
Save €13,027 EUR (37%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €34,964 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 €21,937 to €34,964, a €13,027 spread on the same certified stone. Cape Diamonds lists it at €34,964. 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
Colour
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: €34,964 EUR|Low: €21,937 EUR|High: €38,592 EUR|Avg: €27,513 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
November 2, 2026
Retailer 10€21,937 EUR
Retailer 11€22,178 EUR
Retailer 5€23,567 EUR
Retailer 8€23,594 EUR
Retailer 4€24,010 EUR
Retailer 2€25,602 EUR
Retailer 9€25,899 EUR
Retailer 6€27,676 EUR
Retailer 3€29,549 EUR
Retailer 7€29,689 EUR
Cape Diamonds€34,964 EUR
Retailer 12€38,592 EUR

36 data points across 12 retailers

13 retailers€21,937 EUR to €34,964 EUR

B+
Cheapest Retailer
-
€21,937 EUR
$24,605 USD
B+
Retailer 2
-
€22,178 EUR
$24,875 USD
View
B+
Retailer 3
-
€23,567 EUR
₹2,517,370 INR
View
B
Retailer 4
-
€23,594 EUR
$26,463 USD
View
B+
Retailer 5
-
€24,135 EUR
A$41,646 AUD
View
B
Retailer 6
-
€25,602 EUR
$28,715 USD
View
Retailer 7
-
€25,602 EUR
$28,715 USD
View
Price last confirmed 12 days ago
Retailer 8
-
€25,740 EUR
$28,870 USD
View
Price last confirmed 44 days ago
B
Retailer 9
-
€25,899 EUR
$29,048 USD
View
B
Retailer 10
-
€27,676 EUR
£24,442 GBP
View
Retailer 11
-
€29,549 EUR
$33,142 USD
View
Price last confirmed 40 days ago
B
Retailer 12
-
€29,689 EUR
View
Most Expensive
B
Cape Diamonds
cert_1549103009 · Oct 27
€34,964 EUR
ZAR 633,536 ZAR
View
12 more retailers have this diamond
Prices start from €21,937 EURSave up to €13,027 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
€21,937 EUR