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Oval|Natural|GIA

1.51ct M SI1 Oval Natural Diamond

EX • M/SI1 • GIA 2556084481

Certificate GIA 2556084481

Diamond specifications and retailer prices

From HK$11,936 HKD
As of November 6, 2026
Save HK$13,190 HKD (52%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$38,968 HKD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556084481. Listed at 8 retailers as of November 6, 2026, with a 111% 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

1.51
Carat
M
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2556084481
Dimensions8.94 × 6.36 × 4.04 mm
L/W Ratio1.41
Top View
8.94 mm6.36 mm1.51 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2556084481
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.5%

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 6
Current: HK$25,127 HKD|Low: HK$11,936 HKD|High: HK$27,235 HKD|Avg: HK$18,872 HKD|-7.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7HK$11,936 HKD
Retailer 8HK$14,719 HKD
Retailer 6HK$15,855 HKD
Retailer 3HK$17,023 HKD
Retailer 4HK$17,281 HKD
Retailer 9HK$18,825 HKD
Retailer 2HK$20,965 HKD
Retailer 5HK$22,360 HKD
Retailer 1HK$25,127 HKD

30 data points across 9 retailers

8 retailersHK$11,936 HKD to HK$25,127 HKD

A
Cheapest Retailer
-
HK$11,936 HKD
A
Retailer 2
-
HK$15,855 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$17,023 HKD
View
A
Retailer 4
-
HK$17,281 HKD
View
B+
Retailer 5
-
HK$20,965 HKD
View
B+
Retailer 6
-
HK$22,360 HKD
View
B
Retailer 7
-
HK$25,127 HKD
View
Most Expensive
NZ Jewellers
4d8cfb91-c3d0-48b1-be66-8814a485524b · Sep 25
HK$38,968 HKD
$4,972 USD
View
Price last confirmed 42 days ago
7 more retailers have this diamond
Prices start from HK$11,936 HKDSave up to HK$13,190 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
1.51ct Oval
HK$11,936 HKD