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Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 1555356497

Certificate GIA 1555356497

Diamond specifications and retailer prices

From HK$17,474 HKD
As of November 1, 2026
Save HK$29,569 HKD (63%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$47,043 HKD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555356497. Listed at 12 retailers as of October 30, 2026, with prices from HK$17,474 to HK$47,043, a HK$29,569 spread on the same certified stone. NZ Jewellers lists it at HK$47,043. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555356497
Dimensions9.57 × 6.34 × 3.99 mm
L/W Ratio1.51
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
9.57 mm6.34 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1555356497
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.9%

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$47,043 HKD|Low: HK$17,273 HKD|High: HK$47,733 HKD|Avg: HK$25,602 HKD|-1.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 7HK$17,474 HKD
Retailer 2HK$17,860 HKD
Retailer 11HK$20,775 HKD
Retailer 5HK$21,951 HKD
Retailer 4HK$22,109 HKD
Retailer 10HK$22,501 HKD
Retailer 9HK$23,372 HKD
Retailer 12HK$24,235 HKD
Retailer 3HK$24,292 HKD
Retailer 8HK$25,961 HKD
Retailer 6HK$37,634 HKD
NZ JewellersHK$47,043 HKD

34 data points across 12 retailers

12 retailersHK$17,474 HKD to HK$47,043 HKD

A
Cheapest Retailer
-
HK$17,474 HKD
A
Retailer 2
-
HK$17,860 HKD
₹216,797 INR
View
A
Retailer 3
-
HK$20,775 HKD
$2,648 USD
View
Final sale: no returns
A
Retailer 4
-
HK$21,951 HKD
£2,203 GBP
View
A
Retailer 5
-
HK$22,109 HKD
$2,818 USD
View
A
Retailer 6
-
HK$22,501 HKD
$2,868 USD
View
A
Retailer 7
-
HK$23,372 HKD
$2,979 USD
View
A
Retailer 8
-
HK$24,235 HKD
$3,089 USD
View
A
Retailer 9
-
HK$24,292 HKD
SGD 4,184 SGD
View
A
Retailer 10
-
HK$25,961 HKD
$3,309 USD
View
A
Retailer 11
-
HK$37,634 HKD
£3,777 GBP
View
Most Expensive
B+
NZ Jewellers
df3f3558-a934-4f9b-8a24-f837e4552cf4 · Oct 30
HK$47,043 HKD
$5,996 USD
View
11 more retailers have this diamond
Prices start from HK$17,474 HKDSave up to HK$29,569 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$17,474 HKD