Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1298194820

Certificate GIA 1298194820

Diamond specifications and retailer prices

From $2,929 SGD
₹218,174 INR
As of October 31, 2026
Save $1,360 SGD (32%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,786 SGD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

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 1298194820. Listed at 19 retailers as of October 31, 2026, with a 46% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1298194820
Dimensions6.79 × 6.71 × 4.24 mm
L/W Ratio1.01
Top View
6.79 mm6.71 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1298194820
Side View
Table 56.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $6,786 SGD|Low: $2,921 SGD|High: $6,786 SGD|Avg: $4,189 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 31, 2026
Retailer 2$2,929 SGD
Retailer 10$3,325 SGD
Retailer 9$3,489 SGD
Retailer 16$3,535 SGD
Retailer 7$3,577 SGD
Retailer 13$3,695 SGD
Retailer 8$3,790 SGD
Retailer 3$3,895 SGD
Retailer 4$3,895 SGD
Retailer 18$4,045 SGD
Retailer 14$4,060 SGD
Retailer 6$4,176 SGD
Retailer 11$4,289 SGD
Retailer 15$4,481 SGD
Retailer 5$4,494 SGD
Retailer 12$4,701 SGD
Retailer 17$6,548 SGD
NZ Jewellers$6,786 SGD

34 data points across 18 retailers

19 retailers$2,929 SGD to $4,289 SGD

B+
Cheapest Retailer
-
$2,929 SGD
₹218,174 INR
Retailer 2
-
$3,325 SGD
$2,601 USD
View
Price last confirmed 12 days ago
Retailer 3
-
$3,489 SGD
$2,729 USD
View
Price last confirmed 12 days ago
Retailer 4
-
$3,535 SGD
$2,765 USD
View
Price last confirmed 11 days ago
Retailer 5
-
$3,577 SGD
$2,798 USD
View
Price last confirmed 11 days ago
Retailer 6
-
$3,695 SGD
£2,276 GBP
View
Price last confirmed 10 days ago
Retailer 7
-
$3,790 SGD
$2,965 USD
View
Price last confirmed 9 days ago
Retailer 8
-
$3,895 SGD
$3,047 USD
View
Price last confirmed 10 days ago
Retailer 9
-
$3,895 SGD
$3,047 USD
View
Price last confirmed 16 days ago
Retailer 10
-
$4,045 SGD
$3,164 USD
View
Price last confirmed 17 days ago
Retailer 11
-
$4,060 SGD
£2,501 GBP
View
Price last confirmed 10 days ago
Retailer 12
-
$4,078 SGD
$3,190 USD
View
Price last confirmed 14 days ago
Retailer 13
-
$4,176 SGD
A$5,026 AUD
View
Price last confirmed 28 days ago
B
Retailer 14
-
$4,289 SGD
€3,195 EUR
View
Retailer 15
-
$4,481 SGD
£2,760 GBP
View
Price last confirmed 11 days ago
Retailer 16
-
$4,494 SGD
$3,515 USD
View
Price last confirmed 11 days ago
Retailer 17
-
$4,701 SGD
ZAR 59,403 ZAR
View
Price last confirmed 10 days ago
Retailer 18
-
$6,548 SGD
£4,033 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
09ae892f-2b49-4085-a32f-59d8319f501c · Oct 20
$6,786 SGD
$5,308 USD
View
Price last confirmed 12 days ago
18 more retailers have this diamond
Prices start from $2,929 SGDSave up to $1,360 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.

B+
1.20ct Round
$2,929 SGD