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2.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1539231448

Certificate GIA 1539231448

Diamond specifications and retailer prices

From HK$153,940 HKD
$19,621 USD
As of October 31, 2026
Save HK$128,819 HKD (46%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$282,759 HKD at MOH London · As of November 1, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1539231448. Listed at 11 retailers as of October 31, 2026, with prices from HK$153,940 to HK$282,759, a HK$128,819 spread on the same certified stone. MOH London lists it at HK$282,759. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1539231448
Dimensions8.61 × 8.65 × 5.42 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional twinning wisps, additional clouds, pinpoints and surface graining are not shown.
Top View
8.61 mm8.65 mm2.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1539231448
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: HK$282,759 HKD|Low: HK$153,940 HKD|High: HK$286,167 HKD|Avg: HK$203,891 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7HK$153,940 HKD
Retailer 4HK$176,442 HKD
Retailer 6HK$182,044 HKD
Retailer 3HK$182,568 HKD
Retailer 8HK$186,430 HKD
Retailer 9HK$210,836 HKD
Retailer 5HK$215,670 HKD
Retailer 2HK$218,702 HKD
MOH LondonHK$282,759 HKD

42 data points across 9 retailers

11 retailersHK$153,940 HKD to HK$282,759 HKD

A
Cheapest Retailer
-
HK$153,940 HKD
$19,621 USD
B+
Retailer 2
-
HK$168,361 HKD
$21,459 USD
View
B+
Retailer 3
-
HK$176,442 HKD
$22,489 USD
View
B+
Retailer 4
-
HK$182,044 HKD
$23,203 USD
View
B+
Retailer 5
-
HK$182,568 HKD
£18,323 GBP
View
B+
Retailer 6
-
HK$186,430 HKD
$23,762 USD
View
Retailer 7
-
HK$210,836 HKD
£21,160 GBP
View
Price last confirmed 33 days ago
B+
Retailer 8
-
HK$215,670 HKD
$27,489 USD
View
B
Retailer 9
-
HK$218,702 HKD
€26,548 EUR
View
B
Retailer 10
-
HK$256,492 HKD
$32,692 USD
View
Most Expensive
B
MOH London
82FF63EEA · Nov 1
HK$282,759 HKD
£28,378 GBP
View
10 more retailers have this diamond
Prices start from HK$153,940 HKDSave up to HK$128,819 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.

A
2.51ct Round
HK$153,940 HKD