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Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2243070990

Certificate GIA 2243070990

Diamond specifications and retailer prices

From $1,770 SGD
As of November 5, 2026
Save $1,582 SGD (47%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,352 SGD at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2243070990. Listed at 10 retailers as of November 4, 2026, with prices from $1,770 to $3,352, a $1,582 spread on the same certified stone. Wholesale Diamonds Direct lists it at $3,352. 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

1.00
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2243070990
Dimensions6.36 × 4.01 × 4.01 mm
L/W Ratio1.59
Culet sizeNone
Top View
6.36 mm4.01 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2243070990
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.3%

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 5
Current: $2,265 SGD|Low: $1,760 SGD|High: $3,555 SGD|Avg: $2,521 SGD|-3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 6, 2026
Retailer 3$1,770 SGD
Retailer 6$2,055 SGD
Retailer 5$2,090 SGD
Retailer 9$2,238 SGD
Retailer 1$2,265 SGD
Retailer 7$2,274 SGD
Retailer 4$2,652 SGD
Retailer 8$2,717 SGD
Retailer 2$2,871 SGD
Wholesale Diamonds Direct$3,352 SGD

43 data points across 10 retailers

10 retailers$1,770 SGD to $3,352 SGD

A
Cheapest Retailer
-
$1,770 SGD
A
Retailer 2
-
$2,055 SGD
View
A
Retailer 3
-
$2,090 SGD
View
A
Retailer 4
-
$2,238 SGD
View
A
Retailer 5
-
$2,265 SGD
View
B+
Retailer 6
-
$2,274 SGD
View
B+
Retailer 7
-
$2,652 SGD
View
B+
Retailer 8
-
$2,717 SGD
View
B+
Retailer 9
-
$2,871 SGD
View
Most Expensive
B
Wholesale Diamonds Direct
481731588 · Nov 4
$3,352 SGD
$2,625 USD
View
9 more retailers have this diamond
Prices start from $1,770 SGDSave up to $1,582 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
1.00ct Round
$1,770 SGD