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Oval|Natural|GIA

2.51ct K SI2 Oval Natural Diamond

EX • K/SI2 • GIA 1543542521

Certificate GIA 1543542521

Diamond specifications and retailer prices

From HK$62,151 HKD
As of November 5, 2026
Save HK$18,292 HKD (23%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$118,478 HKD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 2.51ct natural oval diamond

This 2.51ct natural oval sits in the two to three carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1543542521. Listed at 7 retailers as of November 5, 2026, with a 29% 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle39.36°
Pavilion angle39.99°
OriginNatural
Grading LabGIA
CertificateGIA 1543542521
Dimensions10.46 × 7.54 × 4.86 mm
L/W Ratio1.39
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural
Top View
10.46 mm7.54 mm2.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1543542521
Side View
Table 57.0%Crown 39.36°GirdlePavilion 39.99°CuletDepth 64.4%

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: Nov 5
Current: HK$118,478 HKD|Low: HK$62,151 HKD|High: HK$118,791 HKD|Avg: HK$81,109 HKD|-0.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7HK$62,151 HKD
Retailer 3HK$70,247 HKD
Retailer 6HK$70,834 HKD
Retailer 8HK$71,681 HKD
Retailer 5HK$71,924 HKD
Retailer 2HK$80,443 HKD
Retailer 4HK$99,245 HKD
NZ JewellersHK$118,478 HKD

42 data points across 8 retailers

7 retailersHK$62,151 HKD to HK$80,443 HKD

A
Cheapest Retailer
-
HK$62,151 HKD
Retailer 2
-
HK$70,247 HKD
View
Price last confirmed 7 days ago
Retailer 3
-
HK$70,834 HKD
View
Price last confirmed 8 days ago
Retailer 4
-
HK$71,924 HKD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
HK$80,443 HKD
View
Retailer 6
-
HK$99,245 HKD
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
f42a446c-f8e2-4e46-9ea2-0c7ba5ecfc6c · Oct 27
HK$118,478 HKD
$15,117 USD
View
Price last confirmed 10 days ago
6 more retailers have this diamond
Prices start from HK$62,151 HKDSave up to HK$18,292 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 Oval
HK$62,151 HKD