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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 HK$193,043 HKD
$24,605 USD
As of November 1, 2026
Save HK$114,633 HKD (37%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$307,676 HKD 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 HK$193,043 to HK$307,676, a HK$114,633 spread on the same certified stone. Cape Diamonds lists it at HK$307,676. 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: HK$307,676 HKD|Low: HK$193,043 HKD|High: HK$340,053 HKD|Avg: HK$240,928 HKD|+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 2, 2026
Retailer 11HK$193,043 HKD
Retailer 12HK$195,162 HKD
Retailer 6HK$207,448 HKD
Retailer 8HK$207,622 HKD
Retailer 4HK$211,285 HKD
Retailer 9HK$225,289 HKD
Retailer 5HK$226,505 HKD
Retailer 10HK$227,902 HKD
Retailer 2HK$243,540 HKD
Retailer 3HK$260,022 HKD
Retailer 7HK$261,259 HKD
Cape DiamondsHK$307,676 HKD
Retailer 13HK$339,604 HKD

37 data points across 13 retailers

13 retailersHK$193,043 HKD to HK$307,676 HKD

B+
Cheapest Retailer
-
HK$193,043 HKD
$24,605 USD
B+
Retailer 2
-
HK$195,162 HKD
$24,875 USD
View
B+
Retailer 3
-
HK$207,448 HKD
₹2,518,184 INR
View
B
Retailer 4
-
HK$207,622 HKD
$26,463 USD
View
B+
Retailer 5
-
HK$212,385 HKD
A$41,646 AUD
View
B
Retailer 6
-
HK$225,289 HKD
$28,715 USD
View
Retailer 7
-
HK$225,289 HKD
$28,715 USD
View
Price last confirmed 11 days ago
Retailer 8
-
HK$226,505 HKD
$28,870 USD
View
Price last confirmed 43 days ago
B
Retailer 9
-
HK$227,902 HKD
$29,048 USD
View
B
Retailer 10
-
HK$243,540 HKD
£24,442 GBP
View
Retailer 11
-
HK$260,022 HKD
$33,142 USD
View
Price last confirmed 39 days ago
B
Retailer 12
-
HK$261,259 HKD
€31,714 EUR
View
Most Expensive
B
Cape Diamonds
cert_1549103009 · Oct 27
HK$307,676 HKD
ZAR 633,536 ZAR
View
12 more retailers have this diamond
Prices start from HK$193,043 HKDSave up to HK$114,633 HKD

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
HK$193,043 HKD