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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6545266568

Certificate GIA 6545266568

Diamond specifications and retailer prices

From $2,487 SGD
HK$15,200 HKD
As of November 1, 2026
Save $3,255 SGD (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $6,852 SGD at NZ Jewellers · As of October 3, 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 6545266568. Listed at 22 retailers as of November 1, 2026, with a 131% 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
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6545266568
Dimensions6.77 × 6.83 × 4.13 mm
L/W Ratio1.01
Top View
6.77 mm6.83 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545266568
Side View
Table 61.0%Crown 34°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 60.8%

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 1
Current: $4,075 SGD|Low: $2,471 SGD|High: $5,812 SGD|Avg: $3,519 SGD|+1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 9$2,487 SGD
Retailer 5$2,612 SGD
Retailer 2$2,887 SGD
Retailer 12$3,025 SGD
Retailer 3$3,069 SGD
Retailer 6$3,110 SGD
Retailer 11$3,278 SGD
Retailer 8$3,482 SGD
Retailer 4$3,668 SGD
Retailer 10$4,029 SGD
Retailer 1$4,075 SGD
Retailer 7$5,743 SGD

31 data points across 12 retailers

22 retailers$2,487 SGD to $5,743 SGD

A
Cheapest Retailer
-
$2,487 SGD
HK$15,200 HKD
A
Retailer 2
-
$2,612 SGD
₹194,576 INR
View
B+
Retailer 3
-
$2,887 SGD
View
B+
Retailer 4
-
$3,025 SGD
$2,366 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,069 SGD
$2,401 USD
View
B+
Retailer 6
-
$3,084 SGD
$2,412 USD
View
B+
Retailer 7
-
$3,087 SGD
$2,415 USD
View
B+
Retailer 8
-
$3,110 SGD
£1,916 GBP
View
Retailer 9
-
$3,278 SGD
$2,564 USD
View
Price last confirmed 33 days ago
B+
Retailer 10
-
$3,278 SGD
$2,564 USD
View
Price last confirmed 7 days ago
Retailer 11
-
$3,278 SGD
$2,564 USD
View
Price last confirmed 31 days ago
Retailer 12
-
$3,429 SGD
$2,682 USD
View
Price last confirmed 33 days ago
B+
Retailer 13
-
$3,458 SGD
$2,705 USD
View
B+
Retailer 14
-
$3,464 SGD
View
B+
Retailer 15
-
$3,482 SGD
£2,145 GBP
View
Retailer 16
-
$3,668 SGD
A$4,414 AUD
View
Price last confirmed 25 days ago
Retailer 17
-
$3,782 SGD
$2,958 USD
View
Price last confirmed 32 days ago
B+
Retailer 18
-
$4,029 SGD
ZAR 50,912 ZAR
View
B
Retailer 19
-
$4,075 SGD
€3,036 EUR
View
B
Retailer 20
-
$5,743 SGD
£3,537 GBP
View
Retailer 21
-
$6,852 SGD
$5,360 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
f1eaef19-7cf6-4a04-beac-734430fbd376 · Oct 3
$6,852 SGD
$5,360 USD
View
Price last confirmed 29 days ago
21 more retailers have this diamond
Prices start from $2,487 SGDSave up to $3,255 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 Round
$2,487 SGD