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2.51ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6552970879

Certificate GIA 6552970879

Diamond specifications and retailer prices

From HK$120,581 HKD
SGD 20,768 SGD
As of October 28, 2026
Save HK$65,975 HKD (35%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$186,557 HKD at Helzberg Diamonds · As of October 27, 2026
View at Helzberg Diamonds

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552970879. Listed at 10 retailers as of October 27, 2026, with prices from HK$120,581 to HK$186,557, a HK$65,975 spread on the same certified stone. Helzberg Diamonds lists it at HK$186,557. 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
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6552970879
Dimensions8.64 × 8.68 × 5.39 mm
L/W Ratio1.00
Culet sizeNone
Top View
8.64 mm8.68 mm2.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6552970879
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°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: Oct 28
Current: HK$186,557 HKD|Low: HK$120,581 HKD|High: HK$202,210 HKD|Avg: HK$149,313 HKD|-7.7%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 28, 2026
Retailer 2HK$120,581 HKD
Retailer 5HK$126,621 HKD
Retailer 7HK$128,164 HKD
Retailer 6HK$130,545 HKD
Retailer 4HK$132,105 HKD
Retailer 3HK$147,731 HKD
Retailer 10HK$149,040 HKD
Retailer 8HK$150,167 HKD
Retailer 9HK$156,865 HKD
Helzberg DiamondsHK$186,557 HKD

38 data points across 10 retailers

10 retailersHK$120,581 HKD to HK$186,557 HKD

A
Cheapest Retailer
-
HK$120,581 HKD
SGD 20,768 SGD
A
Retailer 2
-
HK$126,621 HKD
£12,707 GBP
View
Retailer 3
-
HK$128,164 HKD
$16,335 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
HK$130,545 HKD
SGD 22,484 SGD
View
A
Retailer 5
-
HK$132,105 HKD
$16,837 USD
View
A
Retailer 6
-
HK$147,731 HKD
€17,932 EUR
View
A
Retailer 7
-
HK$149,040 HKD
$18,995 USD
View
A
Retailer 8
-
HK$150,167 HKD
$19,139 USD
View
A
Retailer 9
-
HK$156,865 HKD
$19,993 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRMLLIPNGONP · Oct 27
HK$186,557 HKD
$23,777 USD
View
9 more retailers have this diamond
Prices start from HK$120,581 HKDSave up to HK$65,975 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$120,581 HKD