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Oval|Natural|GIA

1.51ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 6422921460

Certificate GIA 6422921460

Diamond specifications and retailer prices

From HK$50,212 HKD
$6,400 USD
As of October 28, 2026
Save HK$43,240 HKD (46%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$112,154 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 J 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 6422921460. Listed at 18 retailers as of October 28, 2026, with a 86% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle45.52°
Pavilion angle37.98°
OriginNatural
Grading LabGIA
CertificateGIA 6422921460
Dimensions8.79 × 6.33 × 3.95 mm
L/W Ratio1.39
Top View
8.79 mm6.33 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6422921460
Side View
Table 57.0%Crown 45.52°Girdle: THN-STKPavilion 37.98°Culet: NoneDepth 62.4%

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: Oct 28
Current: HK$112,154 HKD|Low: HK$46,729 HKD|High: HK$112,154 HKD|Avg: HK$68,181 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 6HK$50,212 HKD
Retailer 7HK$56,073 HKD
Retailer 11HK$56,081 HKD
Retailer 3HK$56,544 HKD
Retailer 10HK$60,749 HKD
Retailer 8HK$61,683 HKD
Retailer 4HK$62,802 HKD
Retailer 2HK$69,380 HKD
Retailer 9HK$70,093 HKD
Retailer 5HK$93,453 HKD
NZ JewellersHK$112,154 HKD

41 data points across 11 retailers

18 retailersHK$50,212 HKD to HK$93,453 HKD

B+
Cheapest Retailer
-
HK$50,212 HKD
$6,400 USD
B
Retailer 2
-
HK$52,033 HKD
$6,632 USD
View
B
Retailer 3
-
HK$52,503 HKD
$6,692 USD
View
B
Retailer 4
-
HK$55,383 HKD
CA$9,804 CAD
View
B
Retailer 5
-
HK$56,073 HKD
$7,147 USD
View
Final sale: no returns
B
Retailer 6
-
HK$56,081 HKD
$7,148 USD
View
B
Retailer 7
-
HK$56,544 HKD
$7,207 USD
View
B
Retailer 8
-
HK$60,749 HKD
$7,743 USD
View
B
Retailer 9
-
HK$61,683 HKD
$7,862 USD
View
B
Retailer 10
-
HK$62,802 HKD
£6,303 GBP
View
B
Retailer 11
-
HK$64,248 HKD
$8,189 USD
View
B
Retailer 12
-
HK$66,924 HKD
$8,530 USD
View
B
Retailer 13
-
HK$66,924 HKD
$8,530 USD
View
B
Retailer 14
-
HK$69,199 HKD
$8,820 USD
View
B
Retailer 15
-
HK$69,380 HKD
€8,422 EUR
View
B
Retailer 16
-
HK$70,093 HKD
$8,934 USD
View
B
Retailer 17
-
HK$93,453 HKD
£9,379 GBP
View
Most Expensive
NZ Jewellers
4cfe04df-6bbe-485e-9145-1404a02f04fc · Oct 30
HK$112,154 HKD
$14,295 USD
View
Price under review
17 more retailers have this diamond
Prices start from HK$50,212 HKDSave up to HK$43,240 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$50,212 HKD