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Oval|Natural|GIA

1.30ct J SI1 Oval Natural Diamond

VG • J/SI1 • GIA 5231681012

Certificate GIA 5231681012

Diamond specifications and retailer prices

From HK$18,528 HKD
As of November 6, 2026
Save HK$21,294 HKD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$49,438 HKD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.3ct natural oval diamond

This 1.3ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5231681012. Listed at 16 retailers as of November 4, 2026, with a 115% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.30
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231681012
Dimensions8.14 × 6.03 × 3.92 mm
L/W Ratio1.35
Top View
8.14 mm6.03 mm1.30 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231681012
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.0%

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: Nov 6
Current: HK$49,438 HKD|Low: HK$18,731 HKD|High: HK$49,438 HKD|Avg: HK$28,350 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7HK$18,731 HKD
Retailer 2HK$20,887 HKD
Retailer 9HK$21,420 HKD
Retailer 10HK$22,250 HKD
Retailer 3HK$23,160 HKD
Retailer 8HK$24,719 HKD
Retailer 4HK$27,784 HKD
Retailer 5HK$29,139 HKD
Retailer 6HK$39,822 HKD
NZ JewellersHK$49,438 HKD

44 data points across 10 retailers

16 retailersHK$18,528 HKD to HK$39,822 HKD

A
Cheapest Retailer
-
HK$18,528 HKD
A
Retailer 2
-
HK$18,731 HKD
View
A
Retailer 3
-
HK$19,445 HKD
View
B+
Retailer 4
-
HK$20,887 HKD
View
Retailer 5
-
HK$21,420 HKD
View
Price last confirmed 15 days ago
Retailer 6
-
HK$22,250 HKD
View
Price last confirmed 15 days ago
B+
Retailer 7
-
HK$22,885 HKD
View
B+
Retailer 8
-
HK$23,160 HKD
View
B+
Retailer 9
-
HK$24,688 HKD
View
B+
Retailer 10
-
HK$24,688 HKD
View
Retailer 11
-
HK$24,719 HKD
View
Price last confirmed 14 days ago
B
Retailer 12
-
HK$25,472 HKD
View
B
Retailer 13
-
HK$27,784 HKD
View
B
Retailer 14
-
HK$29,139 HKD
View
B
Retailer 15
-
HK$39,822 HKD
View
Most Expensive
NZ Jewellers
90fb1737-84d0-4be8-b96a-73892b9d3ac5 · Oct 20
HK$49,438 HKD
$6,308 USD
View
Price last confirmed 16 days ago
15 more retailers have this diamond
Prices start from HK$18,528 HKDSave up to HK$21,294 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
1.30ct Oval
HK$18,528 HKD