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Round|Natural|GIA

2.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 5546047512

Certificate GIA 5546047512

Diamond specifications and retailer prices

From HK$59,192 HKD
As of November 4, 2026
Save HK$45,871 HKD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$111,794 HKD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5546047512. Listed at 14 retailers as of November 4, 2026, with a 77% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5546047512
Dimensions8.60 × 8.65 × 5.41 mm
L/W Ratio1.01
Top View
8.60 mm8.65 mm2.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5546047512
Side View
Table 59.0%CrownGirdlePavilionCulet: NDepth 62.7%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: HK$69,406 HKD|Low: HK$59,192 HKD|High: HK$106,020 HKD|Avg: HK$77,307 HKD|-4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5HK$59,192 HKD
Retailer 7HK$59,310 HKD
Retailer 8HK$66,841 HKD
Retailer 6HK$67,367 HKD
Retailer 1HK$69,406 HKD
Retailer 4HK$75,981 HKD
Retailer 2HK$81,959 HKD
Retailer 9HK$88,290 HKD
Retailer 3HK$105,063 HKD

37 data points across 9 retailers

14 retailersHK$59,192 HKD to HK$105,063 HKD

A
Cheapest Retailer
-
HK$59,192 HKD
A
Retailer 2
-
HK$59,310 HKD
View
A
Retailer 3
-
HK$66,841 HKD
View
Retailer 4
-
HK$67,076 HKD
View
Price last confirmed 29 days ago
A
Retailer 5
-
HK$67,367 HKD
View
A
Retailer 6
-
HK$69,406 HKD
View
Retailer 7
-
HK$72,662 HKD
View
Price last confirmed 29 days ago
Retailer 8
-
HK$73,784 HKD
View
Price last confirmed 38 days ago
A
Retailer 9
-
HK$75,981 HKD
View
A
Retailer 10
-
HK$81,959 HKD
View
Retailer 11
-
HK$83,842 HKD
View
Price last confirmed 38 days ago
Retailer 12
-
HK$88,290 HKD
View
Price last confirmed 14 days ago
B+
Retailer 13
-
HK$105,063 HKD
View
Most Expensive
NZ Jewellers
29289aa4-f6d7-4c00-8cfe-0327b2998af7 · Sep 28
HK$111,794 HKD
$14,250 USD
View
Price last confirmed 39 days ago
13 more retailers have this diamond
Prices start from HK$59,192 HKDSave up to HK$45,871 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$59,192 HKD