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Round|Natural|GIA

2.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2195428383

Certificate GIA 2195428383

Diamond specifications and retailer prices

From HK$158,515 HKD
$20,204 USD
As of October 30, 2026
Save HK$111,192 HKD (41%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$269,707 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 2195428383. Listed at 17 retailers as of October 30, 2026, with prices from HK$158,515 to HK$269,707, a HK$111,192 spread on the same certified stone. MOH London lists it at HK$269,707. 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
SymmetryVery Good
FluorescenceFaint
Crown angle35°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2195428383
Dimensions8.67 × 8.61 × 5.37 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Top View
8.67 mm8.61 mm2.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2195428383
Side View
Table 55.0%Crown 35°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

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 30
Current: HK$269,707 HKD|Low: HK$151,344 HKD|High: HK$272,965 HKD|Avg: HK$186,491 HKD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5HK$151,344 HKD
Retailer 4HK$160,068 HKD
Retailer 6HK$165,497 HKD
Retailer 3HK$174,100 HKD
Retailer 7HK$181,330 HKD
Retailer 2HK$201,312 HKD
MOH LondonHK$269,707 HKD

37 data points across 7 retailers

17 retailersHK$158,515 HKD to HK$269,707 HKD

A
Retailer 1
-
HK$151,344 HKD
$19,290 USD
Price last confirmed 7 days ago
B+
Retailer 2
-
HK$158,515 HKD
$20,204 USD
View
B+
Retailer 3
-
HK$158,766 HKD
$20,236 USD
View
B+
Retailer 4
-
HK$160,068 HKD
₹1,943,044 INR
View
B+
Retailer 5
-
HK$165,497 HKD
$21,094 USD
View
Final sale: no returns
B+
Retailer 6
-
HK$172,700 HKD
$22,012 USD
View
B+
Retailer 7
-
HK$174,100 HKD
£17,473 GBP
View
B+
Retailer 8
-
HK$181,330 HKD
$23,112 USD
View
B
Retailer 9
-
HK$184,060 HKD
$23,460 USD
View
B
Retailer 10
-
HK$184,060 HKD
$23,460 USD
View
B
Retailer 11
-
HK$184,555 HKD
$23,523 USD
View
B
Retailer 12
-
HK$187,089 HKD
$23,846 USD
View
B
Retailer 13
-
HK$190,180 HKD
$24,240 USD
View
B
Retailer 14
-
HK$194,283 HKD
$24,763 USD
View
B
Retailer 15
-
HK$201,312 HKD
€24,437 EUR
View
B
Retailer 16
-
HK$244,652 HKD
$31,183 USD
View
Most Expensive
B
MOH London
5797D3460 · Nov 1
HK$269,707 HKD
£27,068 GBP
View
16 more retailers have this diamond
Prices start from HK$158,515 HKDSave up to HK$111,192 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$158,515 HKD