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Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 2566156295

Certificate GIA 2566156295

Diamond specifications and retailer prices

From HK$33,105 HKD
As of November 5, 2026
Save HK$26,833 HKD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$59,939 HKD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566156295. Listed at 13 retailers as of November 5, 2026, with prices from HK$33,105 to HK$59,939, a HK$26,833 spread on the same certified stone. Wholesale Diamonds Direct lists it at HK$59,939. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.24°
Pavilion angle39.43°
OriginNatural
Grading LabGIA
CertificateGIA 2566156295
Dimensions8.95 × 6.42 × 3.96 mm
L/W Ratio1.39
Culet sizeNone
Top View
8.95 mm6.42 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566156295
Side View
Table 60.0%Crown 40.24°Girdle: MED-THKPavilion 39.43°Culet: NoneDepth 61.7%

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$42,353 HKD|Low: HK$33,105 HKD|High: HK$67,068 HKD|Avg: HK$42,375 HKD|-8.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 6, 2026
Retailer 10HK$33,105 HKD
Retailer 7HK$34,046 HKD
Retailer 6HK$34,367 HKD
Retailer 8HK$34,955 HKD
Retailer 3HK$35,543 HKD
Retailer 4HK$35,668 HKD
Retailer 2HK$35,880 HKD
Retailer 5HK$36,820 HKD
Retailer 11HK$41,366 HKD
Retailer 12HK$41,460 HKD
Retailer 1HK$42,353 HKD
Retailer 9HK$55,450 HKD
Wholesale Diamonds DirectHK$59,939 HKD

33 data points across 13 retailers

13 retailersHK$33,105 HKD to HK$59,939 HKD

A
Cheapest Retailer
-
HK$33,105 HKD
A
Retailer 2
-
HK$34,046 HKD
View
A
Retailer 3
-
HK$34,367 HKD
View
A
Retailer 4
-
HK$34,955 HKD
View
A
Retailer 5
-
HK$35,543 HKD
View
A
Retailer 6
-
HK$35,668 HKD
View
A
Retailer 7
-
HK$35,880 HKD
View
A
Retailer 8
-
HK$36,820 HKD
View
A
Retailer 9
-
HK$41,366 HKD
View
A
Retailer 10
-
HK$41,460 HKD
View
A
Retailer 11
-
HK$42,353 HKD
View
B+
Retailer 12
-
HK$55,450 HKD
View
Most Expensive
B+
Wholesale Diamonds Direct
579393277 · Nov 6
HK$59,939 HKD
$7,648 USD
View
12 more retailers have this diamond
Prices start from HK$33,105 HKDSave up to HK$26,833 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$33,105 HKD