Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 1515314942

Certificate GIA 1515314942

Diamond specifications and retailer prices

From HK$36,611 HKD
₹444,419 INR
As of November 1, 2026
Save HK$34,622 HKD (49%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$80,873 HKD at NZ Jewellers · As of September 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 J 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 1515314942. Listed at 21 retailers as of November 1, 2026, with a 95% 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.19°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1515314942
Dimensions9.00 × 6.43 × 4.04 mm
L/W Ratio1.40
Culet sizeNone
Top View
9.00 mm6.43 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1515314942
Side View
Table 60.0%Crown 37.19°Girdle: STK-THKPavilion 41°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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$80,873 HKD|Low: HK$36,611 HKD|High: HK$80,873 HKD|Avg: HK$53,289 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 5HK$36,611 HKD
Retailer 3HK$42,147 HKD
Retailer 9HK$44,626 HKD
Retailer 4HK$46,388 HKD
Retailer 10HK$48,051 HKD
Retailer 11HK$48,353 HKD
Retailer 2HK$52,822 HKD
Retailer 7HK$59,407 HKD
Retailer 8HK$70,058 HKD
Retailer 6HK$71,233 HKD
NZ JewellersHK$80,873 HKD

33 data points across 11 retailers

21 retailersHK$36,611 HKD to HK$71,233 HKD

B+
Cheapest Retailer
-
HK$36,611 HKD
₹444,419 INR
B+
Retailer 2
-
HK$40,915 HKD
$5,215 USD
View
B
Retailer 3
-
HK$42,147 HKD
$5,372 USD
View
B
Retailer 4
-
HK$42,171 HKD
$5,375 USD
View
B
Retailer 5
-
HK$42,547 HKD
$5,423 USD
View
B+
Retailer 6
-
HK$44,626 HKD
$5,688 USD
View
Final sale: no returns
B+
Retailer 7
-
HK$45,034 HKD
$5,740 USD
View
B+
Retailer 8
-
HK$46,388 HKD
£4,656 GBP
View
Retailer 9
-
HK$48,051 HKD
A$9,422 AUD
View
Price last confirmed 29 days ago
Retailer 10
-
HK$48,353 HKD
$6,163 USD
View
Price last confirmed 40 days ago
Retailer 11
-
HK$48,353 HKD
$6,163 USD
View
Price last confirmed 25 days ago
Retailer 12
-
HK$48,353 HKD
$6,163 USD
View
Price last confirmed 21 days ago
B
Retailer 13
-
HK$49,583 HKD
$6,320 USD
View
B
Retailer 14
-
HK$52,822 HKD
€6,412 EUR
View
B
Retailer 15
-
HK$54,042 HKD
$6,888 USD
View
Retailer 16
-
HK$55,791 HKD
$7,111 USD
View
Price last confirmed 41 days ago
Retailer 17
-
HK$55,791 HKD
$7,111 USD
View
Price last confirmed 24 days ago
B
Retailer 18
-
HK$59,407 HKD
ZAR 122,326 ZAR
View
B
Retailer 19
-
HK$70,058 HKD
$8,930 USD
View
B
Retailer 20
-
HK$71,233 HKD
£7,149 GBP
View
Most Expensive
NZ Jewellers
27ef9794-3a8d-43b7-9091-dffc4b51fe26 · Sep 30
HK$80,873 HKD
$10,308 USD
View
Price last confirmed 32 days ago
20 more retailers have this diamond
Prices start from HK$36,611 HKDSave up to HK$34,622 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.

B+
1.51ct Oval
HK$36,611 HKD