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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5242053949

Certificate GIA 5242053949

Diamond specifications and retailer prices

From $2,104 AUD
SGD 1,997 SGD
As of October 31, 2026
Save $1,963 AUD (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,067 AUD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5242053949. Listed at 9 retailers as of October 26, 2026, with prices from $2,104 to $4,067, a $1,963 spread on the same certified stone. Wholesale Diamonds Direct lists it at $4,067. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5242053949
Dimensions6.74 × 4.23 × 4.23 mm
L/W Ratio1.59
Culet sizeNone
Top View
6.74 mm4.23 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5242053949
Side View
Table 58.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.7%

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: $2,937 AUD|Low: $1,830 AUD|High: $4,495 AUD|Avg: $3,009 AUD|+9.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
October 31, 2026
Retailer 9$1,830 AUD
Retailer 6$2,104 AUD
Retailer 3$2,469 AUD
Retailer 4$2,498 AUD
Retailer 8$2,687 AUD
Retailer 1$2,937 AUD
Retailer 2$3,173 AUD
Retailer 7$3,214 AUD
Retailer 5$3,763 AUD
Wholesale Diamonds Direct$4,067 AUD

31 data points across 10 retailers

9 retailers$2,104 AUD to $4,067 AUD

A
Cheapest Retailer
-
$2,104 AUD
SGD 1,997 SGD
A
Retailer 2
-
$2,469 AUD
$1,734 USD
View
A
Retailer 3
-
$2,498 AUD
$1,755 USD
View
A
Retailer 4
-
$2,687 AUD
SGD 2,551 SGD
View
B+
Retailer 5
-
$2,937 AUD
$2,063 USD
View
B+
Retailer 6
-
$3,173 AUD
£1,755 GBP
View
B+
Retailer 7
-
$3,214 AUD
$2,258 USD
View
B+
Retailer 8
-
$3,763 AUD
$2,643 USD
View
Most Expensive
B
Wholesale Diamonds Direct
610677878 · Oct 26
$4,067 AUD
$2,857 USD
View
8 more retailers have this diamond
Prices start from $2,104 AUDSave up to $1,963 AUD

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 Round
$2,104 AUD