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Oval|Natural|GIA

1.20ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 1553999146

Certificate GIA 1553999146

Diamond specifications and retailer prices

From $2,147 SGD
As of October 31, 2026
Save $2,031 SGD (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,178 SGD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 1553999146. Listed at 12 retailers as of October 26, 2026, with prices from $2,147 to $4,178, a $2,031 spread on the same certified stone. Wholesale Diamonds Direct lists it at $4,178. 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
Crown angle39.84°
Pavilion angle39.3°
OriginNatural
Grading LabGIA
CertificateGIA 1553999146
Dimensions8.27 × 5.95 × 3.70 mm
L/W Ratio1.39
Culet sizeNone
Top View
8.27 mm5.95 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553999146
Side View
Table 59.0%Crown 39.84°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $3,187 SGD|Low: $2,147 SGD|High: $4,472 SGD|Avg: $3,119 SGD|-7.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 1, 2026
Retailer 9$2,147 SGD
Retailer 7$2,520 SGD
Retailer 6$2,542 SGD
Retailer 3$2,598 SGD
Retailer 2$2,768 SGD
Retailer 4$2,806 SGD
Retailer 10$3,022 SGD
Retailer 1$3,187 SGD
Retailer 11$3,226 SGD
Retailer 5$3,571 SGD
Retailer 8$3,874 SGD
Wholesale Diamonds Direct$4,178 SGD

32 data points across 12 retailers

12 retailers$2,147 SGD to $4,178 SGD

A
Cheapest Retailer
-
$2,147 SGD
A
Retailer 2
-
$2,520 SGD
$1,971 USD
View
A
Retailer 3
-
$2,542 SGD
$1,988 USD
View
B+
Retailer 4
-
$2,598 SGD
$2,032 USD
View
B+
Retailer 5
-
$2,768 SGD
View
B+
Retailer 6
-
$2,806 SGD
£1,728 GBP
View
B+
Retailer 7
-
$3,022 SGD
$2,364 USD
View
B+
Retailer 8
-
$3,187 SGD
$2,493 USD
View
B+
Retailer 9
-
$3,226 SGD
$2,523 USD
View
B+
Retailer 10
-
$3,571 SGD
€2,660 EUR
View
B
Retailer 11
-
$3,874 SGD
$3,030 USD
View
Most Expensive
B
Wholesale Diamonds Direct
271990025 · Oct 26
$4,178 SGD
$3,268 USD
View
11 more retailers have this diamond
Prices start from $2,147 SGDSave up to $2,031 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
$2,147 SGD