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Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

ID • J/SI1 • GIA 6552516815

Certificate GIA 6552516815

Diamond specifications and retailer prices

From $2,755 SGD
As of November 1, 2026
Save $4,437 SGD (62%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,192 SGD at NZ Jewellers · As of November 5, 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 6552516815. Listed at 23 retailers as of November 1, 2026, with prices from $2,755 to $7,192, a $4,437 spread on the same certified stone. NZ Jewellers lists it at $7,192. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552516815
Dimensions10.47 × 5.51 × 3.50 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Indented Natural, Needle, Extra Facet
Top View
10.47 mm5.51 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552516815
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 63.6%

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: $7,192 SGD|Low: $2,734 SGD|High: $7,333 SGD|Avg: $3,626 SGD|-1.9%
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
Retailer 20
Retailer 21
November 6, 2026
Retailer 14$2,734 SGD
Retailer 5$2,755 SGD
Retailer 11$2,877 SGD
Retailer 8$2,895 SGD
Retailer 7$3,103 SGD
Retailer 4$3,108 SGD
Retailer 10$3,117 SGD
Retailer 20$3,117 SGD
Retailer 12$3,171 SGD
Retailer 9$3,175 SGD
Retailer 3$3,260 SGD
Retailer 15$3,337 SGD
Retailer 2$3,391 SGD
Retailer 21$3,483 SGD
Retailer 18$3,596 SGD
Retailer 17$3,619 SGD
Retailer 16$4,002 SGD
Retailer 19$4,199 SGD
Retailer 13$5,280 SGD
Retailer 6$6,026 SGD
NZ Jewellers$7,192 SGD

20 data points across 21 retailers

23 retailers$2,755 SGD to $7,192 SGD

Retailer 1
-
$2,734 SGD
Price last confirmed 17 days ago
A
Retailer 2
-
$2,755 SGD
View
B+
Retailer 3
-
$2,877 SGD
View
Final sale: no returns
A
Retailer 4
-
$2,895 SGD
View
A
Retailer 5
-
$3,103 SGD
View
A
Retailer 6
-
$3,108 SGD
View
A
Retailer 7
-
$3,117 SGD
View
Retailer 8
-
$3,117 SGD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$3,171 SGD
View
B+
Retailer 10
-
$3,175 SGD
View
B+
Retailer 11
-
$3,260 SGD
View
B+
Retailer 12
-
$3,337 SGD
View
B+
Retailer 13
-
$3,391 SGD
View
B+
Retailer 14
-
$3,483 SGD
View
B+
Retailer 15
-
$3,596 SGD
View
B+
Retailer 16
-
$3,619 SGD
View
B+
Retailer 17
-
$3,663 SGD
View
Retailer 18
-
$3,929 SGD
View
Price last confirmed 31 days ago
B+
Retailer 19
-
$4,002 SGD
View
B
Retailer 20
-
$4,199 SGD
View
B
Retailer 21
-
$5,280 SGD
View
B
Retailer 22
-
$6,026 SGD
View
Most Expensive
B
NZ Jewellers
7263c95b-dd3a-487d-a178-0f0d2679b9a8 · Nov 5
$7,192 SGD
$5,612 USD
View
22 more retailers have this diamond
Prices start from $2,755 SGDSave up to $4,437 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 Marquise
$2,755 SGD