Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 2556769921

Certificate GIA 2556769921

Diamond specifications and retailer prices

From HK$26,566 HKD
$3,386 USD
As of October 31, 2026
Save HK$7,226 HKD (21%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$58,788 HKD at NZ Jewellers · As of October 17, 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 2556769921. Listed at 24 retailers as of October 31, 2026, with a 27% 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
FluorescenceStrong
Crown angle40.31°
Pavilion angle38.84°
OriginNatural
Grading LabGIA
CertificateGIA 2556769921
Dimensions8.94 × 6.39 × 3.96 mm
L/W Ratio1.40
Culet sizeNone
Top View
8.94 mm6.39 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2556769921
Side View
Table 59.0%Crown 40.31°Girdle: STK-THKPavilion 38.84°Culet: NoneDepth 62.0%

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: Oct 31
Current: HK$58,788 HKD|Low: HK$23,473 HKD|High: HK$58,788 HKD|Avg: HK$32,378 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
Retailer 27
Retailer 28
Retailer 29
Retailer 30
Retailer 31
October 21, 2026
Retailer 18HK$23,473 HKD
Retailer 26HK$25,773 HKD
Retailer 3HK$25,948 HKD
Retailer 2HK$26,566 HKD
Retailer 27HK$26,589 HKD
Retailer 10HK$26,895 HKD
Retailer 19HK$27,926 HKD
Retailer 14HK$28,213 HKD
Retailer 8HK$29,225 HKD
Retailer 20HK$29,916 HKD
Retailer 23HK$30,127 HKD
Retailer 15HK$30,292 HKD
Retailer 11HK$30,535 HKD
Retailer 29HK$30,567 HKD
Retailer 5HK$31,744 HKD
Retailer 4HK$31,759 HKD
Retailer 13HK$32,614 HKD
Retailer 21HK$32,819 HKD
Retailer 16HK$33,072 HKD
Retailer 7HK$33,266 HKD
Retailer 17HK$33,791 HKD
Retailer 24HK$34,251 HKD
Retailer 9HK$35,274 HKD
Retailer 12HK$35,642 HKD
Retailer 28HK$35,753 HKD
Retailer 25HK$39,888 HKD
Retailer 31HK$40,961 HKD
Retailer 22HK$44,995 HKD
Retailer 6HK$48,791 HKD
Retailer 30HK$54,035 HKD
NZ JewellersHK$58,788 HKD

17 data points across 31 retailers

24 retailersHK$26,566 HKD to HK$33,791 HKD

Retailer 1
-
HK$25,773 HKD
$3,285 USD
Price last confirmed 14 days ago
Retailer 2
-
HK$25,948 HKD
$3,307 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
HK$26,566 HKD
$3,386 USD
View
Retailer 4
-
HK$26,589 HKD
$3,389 USD
View
Price last confirmed 12 days ago
Retailer 5
-
HK$26,895 HKD
$3,428 USD
View
Price last confirmed 12 days ago
Retailer 6
-
HK$28,252 HKD
$3,601 USD
View
Price last confirmed 13 days ago
Retailer 7
-
HK$29,225 HKD
$3,725 USD
View
Price last confirmed 14 days ago
Retailer 8
-
HK$30,127 HKD
$3,840 USD
View
Price last confirmed 34 days ago
B+
Retailer 9
-
HK$30,292 HKD
$3,861 USD
View
B+
Retailer 10
-
HK$30,512 HKD
$3,889 USD
View
B+
Retailer 11
-
HK$30,535 HKD
CA$5,405 CAD
View
Retailer 12
-
HK$30,567 HKD
$3,896 USD
View
Price last confirmed 15 days ago
Retailer 13
-
HK$31,744 HKD
$4,046 USD
View
Price last confirmed 16 days ago
Retailer 14
-
HK$32,614 HKD
£3,273 GBP
View
Price last confirmed 14 days ago
Retailer 15
-
HK$33,266 HKD
$4,240 USD
View
Price last confirmed 13 days ago
B+
Retailer 16
-
HK$33,791 HKD
$4,307 USD
View
Retailer 17
-
HK$34,251 HKD
£3,437 GBP
View
Price last confirmed 14 days ago
Retailer 18
-
HK$35,274 HKD
$4,496 USD
View
Price last confirmed 14 days ago
Retailer 19
-
HK$35,642 HKD
$4,543 USD
View
Price last confirmed 14 days ago
Retailer 20
-
HK$40,961 HKD
ZAR 84,343 ZAR
View
Price last confirmed 15 days ago
Retailer 21
-
HK$44,995 HKD
$5,735 USD
View
Price last confirmed 38 days ago
Retailer 22
-
HK$48,791 HKD
$6,219 USD
View
Price last confirmed 16 days ago
Retailer 23
-
HK$54,035 HKD
£5,423 GBP
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
e5deafd4-215d-47a4-bd32-c676083a86f0 · Oct 17
HK$58,788 HKD
$7,493 USD
View
Price last confirmed 15 days ago
23 more retailers have this diamond
Prices start from HK$26,566 HKDSave up to HK$7,226 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$26,566 HKD