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Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 7541749455

Certificate GIA 7541749455

Diamond specifications and retailer prices

From $4,664 SGD
As of November 5, 2026
Save $4,816 SGD (51%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,633 SGD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7541749455. Listed at 20 retailers as of November 4, 2026, with a 103% 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7541749455
Dimensions10.21 × 5.51 × 3.61 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizeNone
Top View
10.21 mm5.51 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7541749455
Side View
Table 60.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 65.5%

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: Nov 5
Current: $4,943 SGD|Low: $4,416 SGD|High: $9,836 SGD|Avg: $6,515 SGD|+5.7%
Retailer 1
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
November 6, 2026
Retailer 11$4,664 SGD
Retailer 14$4,757 SGD
Retailer 1$4,943 SGD
Retailer 13$5,079 SGD
Retailer 12$5,139 SGD
Retailer 6$5,529 SGD
Retailer 7$5,842 SGD
Retailer 2$6,024 SGD
Retailer 4$6,024 SGD
Retailer 5$6,152 SGD
Retailer 3$6,229 SGD
Retailer 10$6,726 SGD
Retailer 8$7,282 SGD
Retailer 9$9,480 SGD

44 data points across 14 retailers

20 retailers$4,664 SGD to $9,480 SGD

B+
Cheapest Retailer
-
$4,664 SGD
B
Retailer 2
-
$4,757 SGD
View
B
Retailer 3
-
$4,943 SGD
View
Final sale: no returns
B
Retailer 4
-
$5,079 SGD
View
B
Retailer 5
-
$5,139 SGD
View
Retailer 6
-
$5,529 SGD
View
Price last confirmed 37 days ago
Retailer 7
-
$5,529 SGD
View
Price last confirmed 37 days ago
Retailer 8
-
$5,529 SGD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$5,704 SGD
View
B
Retailer 10
-
$5,842 SGD
View
B
Retailer 11
-
$6,024 SGD
View
B
Retailer 12
-
$6,024 SGD
View
Retailer 13
-
$6,152 SGD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$6,229 SGD
View
Retailer 15
-
$6,380 SGD
View
Price last confirmed 39 days ago
B
Retailer 16
-
$6,726 SGD
View
Retailer 17
-
$6,740 SGD
View
Price last confirmed 15 days ago
B
Retailer 18
-
$7,282 SGD
View
B
Retailer 19
-
$9,480 SGD
View
Most Expensive
NZ Jewellers
2e8647e1-b92f-46c4-a630-b29b07b36f68 · Sep 30
$10,633 SGD
$8,297 USD
View
Price under review
19 more retailers have this diamond
Prices start from $4,664 SGDSave up to $4,816 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 Marquise
$4,664 SGD