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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5563366918

Certificate GIA 5563366918

Diamond specifications and retailer prices

From $3,067 SGD
$2,399 USD
As of October 31, 2026
Save $4,572 SGD (60%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,638 SGD at NZ Jewellers · As of October 27, 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 5563366918. Listed at 20 retailers as of October 27, 2026, with prices from $3,067 to $7,638, a $4,572 spread on the same certified stone. NZ Jewellers lists it at $7,638. 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 angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5563366918
Dimensions6.76 × 6.71 × 4.24 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.76 mm6.71 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5563366918
Side View
Table 58.0%Crown 35.5°Girdle: Med. - Sli. ThickPavilion 41.2°Culet: NDepth 62.9%

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: $7,638 SGD|Low: $3,067 SGD|High: $7,702 SGD|Avg: $4,048 SGD|-0.8%
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
Retailer 19
November 1, 2026
Retailer 11$3,067 SGD
Retailer 18$3,273 SGD
Retailer 19$3,324 SGD
Retailer 7$3,372 SGD
Retailer 5$3,458 SGD
Retailer 2$3,467 SGD
Retailer 8$3,580 SGD
Retailer 13$3,654 SGD
Retailer 15$3,654 SGD
Retailer 9$3,720 SGD
Retailer 16$3,794 SGD
Retailer 6$3,835 SGD
Retailer 12$3,883 SGD
Retailer 14$3,936 SGD
Retailer 3$4,216 SGD
Retailer 17$4,271 SGD
Retailer 4$4,449 SGD
Retailer 10$6,436 SGD
NZ Jewellers$7,638 SGD

20 data points across 19 retailers

20 retailers$3,067 SGD to $7,638 SGD

B+
Cheapest Retailer
-
$3,067 SGD
$2,399 USD
B+
Retailer 2
-
$3,273 SGD
$2,560 USD
View
B+
Retailer 3
-
$3,324 SGD
$2,600 USD
View
B+
Retailer 4
-
$3,372 SGD
$2,638 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,458 SGD
$2,705 USD
View
B+
Retailer 6
-
$3,467 SGD
£2,136 GBP
View
B+
Retailer 7
-
$3,580 SGD
$2,800 USD
View
B+
Retailer 8
-
$3,654 SGD
$2,858 USD
View
B+
Retailer 9
-
$3,654 SGD
$2,858 USD
View
B
Retailer 10
-
$3,720 SGD
$2,910 USD
View
B+
Retailer 11
-
$3,794 SGD
$2,968 USD
View
B+
Retailer 12
-
$3,835 SGD
$3,000 USD
View
B+
Retailer 13
-
$3,883 SGD
£2,392 GBP
View
B
Retailer 14
-
$3,936 SGD
$3,079 USD
View
Retailer 15
-
$4,161 SGD
A$5,007 AUD
View
Price last confirmed 24 days ago
B
Retailer 16
-
$4,216 SGD
$3,298 USD
View
B
Retailer 17
-
$4,271 SGD
€3,182 EUR
View
B
Retailer 18
-
$4,449 SGD
ZAR 56,224 ZAR
View
B
Retailer 19
-
$6,436 SGD
£3,964 GBP
View
Most Expensive
C
NZ Jewellers
b2f06508-a94f-49b8-95ab-fca17bc7698d · Oct 27
$7,638 SGD
$5,975 USD
View
19 more retailers have this diamond
Prices start from $3,067 SGDSave up to $4,572 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
$3,067 SGD