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Oval|Natural|GIA

1.20ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 1543029754

Certificate GIA 1543029754

Diamond specifications and retailer prices

From $1,718 SGD
HK$10,500 HKD
As of October 31, 2026
Save $3,990 SGD (70%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,708 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-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 1543029754. Listed at 10 retailers as of October 30, 2026, with prices from $1,718 to $5,708, a $3,990 spread on the same certified stone. NZ Jewellers lists it at $5,708. 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

1.20
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.13°
OriginNatural
Grading LabGIA
CertificateGIA 1543029754
Dimensions8.19 × 5.84 × 3.71 mm
L/W Ratio1.40
Key to symbols
Crystal, Knot, Feather, Needle
Top View
8.19 mm5.84 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1543029754
Side View
Table 60.0%CrownGirdle: STK-THKPavilion 35.13°Culet: NoneDepth 63.5%

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: $5,708 SGD|Low: $1,702 SGD|High: $6,172 SGD|Avg: $3,016 SGD|-7.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 3$1,718 SGD
Retailer 2$2,208 SGD
Retailer 6$2,341 SGD
Retailer 10$2,379 SGD
Retailer 9$2,390 SGD
Retailer 7$2,448 SGD
Retailer 8$2,591 SGD
Retailer 4$3,203 SGD
Retailer 5$4,122 SGD
NZ Jewellers$5,708 SGD

32 data points across 10 retailers

10 retailers$1,718 SGD to $5,708 SGD

A
Cheapest Retailer
-
$1,718 SGD
HK$10,500 HKD
A
Retailer 2
-
$2,208 SGD
$1,727 USD
View
A
Retailer 3
-
$2,341 SGD
$1,831 USD
View
B+
Retailer 4
-
$2,379 SGD
$1,861 USD
View
Final sale: no returns
A
Retailer 5
-
$2,390 SGD
View
B+
Retailer 6
-
$2,448 SGD
$1,915 USD
View
B+
Retailer 7
-
$2,591 SGD
$2,027 USD
View
B+
Retailer 8
-
$3,203 SGD
€2,386 EUR
View
B
Retailer 9
-
$4,122 SGD
£2,539 GBP
View
Most Expensive
B
NZ Jewellers
e8d40a08-bbda-461f-9049-c2ef64dd678a · Oct 30
$5,708 SGD
$4,465 USD
View
9 more retailers have this diamond
Prices start from $1,718 SGDSave up to $3,990 SGD

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
1.20ct Oval
$1,718 SGD