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Round|Natural|GIA

2.51ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 5516107542

Certificate GIA 5516107542

Diamond specifications and retailer prices

From HK$97,163 HKD
As of November 1, 2026
Save HK$73,700 HKD (43%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$170,862 HKD at MOH London · As of November 2, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5516107542. Listed at 13 retailers as of November 1, 2026, with prices from HK$97,163 to HK$170,862, a HK$73,700 spread on the same certified stone. MOH London lists it at HK$170,862. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5516107542
Dimensions8.71 × 8.67 × 5.41 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
8.71 mm8.67 mm2.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5516107542
Side View
Table 56.0%Crown 35.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.3%

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: Nov 1
Current: HK$170,862 HKD|Low: HK$97,163 HKD|High: HK$172,915 HKD|Avg: HK$135,949 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5HK$97,163 HKD
Retailer 3HK$114,877 HKD
Retailer 6HK$116,697 HKD
Retailer 4HK$136,946 HKD
Retailer 2HK$150,228 HKD
Retailer 7HK$154,990 HKD
MOH LondonHK$170,862 HKD

43 data points across 7 retailers

13 retailersHK$97,163 HKD to HK$170,862 HKD

A
Cheapest Retailer
-
HK$97,163 HKD
A
Retailer 2
-
HK$101,501 HKD
View
B+
Retailer 3
-
HK$107,440 HKD
View
Retailer 4
-
HK$109,401 HKD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
HK$110,311 HKD
View
B+
Retailer 6
-
HK$114,877 HKD
View
B+
Retailer 7
-
HK$116,697 HKD
View
B+
Retailer 8
-
HK$118,517 HKD
View
B+
Retailer 9
-
HK$123,075 HKD
View
B
Retailer 10
-
HK$136,946 HKD
View
B
Retailer 11
-
HK$150,228 HKD
View
B
Retailer 12
-
HK$154,990 HKD
View
Most Expensive
B
MOH London
3665BC12E · Nov 2
HK$170,862 HKD
£17,149 GBP
View
12 more retailers have this diamond
Prices start from HK$97,163 HKDSave up to HK$73,700 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$97,163 HKD