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Marquise|Natural|IGI

1.20ct I SI1 Marquise Natural Diamond

VG • I/SI1 • IGI 712558468

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 712558468

Diamond specifications and retailer prices

From $3,328 SGD
As of November 5, 2026
Save $3,717 SGD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,045 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 712558468. Listed at 15 retailers as of November 5, 2026, with prices from $3,328 to $7,045, a $3,717 spread on the same certified stone. NZ Jewellers lists it at $7,045. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle39.1°
OriginNatural
Grading LabIGI
CertificateIGI 712558468
Dimensions10.73 × 5.29 × 3.40 mm
L/W Ratio2.03
Girdle conditionFaceted
Top View
10.73 mm5.29 mm1.20 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 712558468
Side View
Table 60.0%Crown 41.8°Girdle: THK-VTKPavilion 39.1°Culet: NoneDepth 64.3%

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 5
Current: $7,045 SGD|Low: $3,309 SGD|High: $7,045 SGD|Avg: $4,538 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
November 6, 2026
Retailer 10$3,328 SGD
Retailer 6$3,622 SGD
Retailer 13$3,627 SGD
Retailer 4$3,659 SGD
Retailer 3$3,791 SGD
Retailer 14$3,965 SGD
Retailer 7$4,043 SGD
Retailer 8$4,177 SGD
Retailer 15$4,199 SGD
Retailer 12$4,623 SGD
Retailer 5$4,666 SGD
Retailer 9$4,839 SGD
Retailer 2$5,985 SGD
Retailer 11$6,613 SGD
NZ Jewellers$7,045 SGD

12 data points across 15 retailers

15 retailers$3,328 SGD to $7,045 SGD

A
Cheapest Retailer
-
$3,328 SGD
B+
Retailer 2
-
$3,622 SGD
View
A
Retailer 3
-
$3,627 SGD
View
B+
Retailer 4
-
$3,659 SGD
View
Final sale: no returns
B+
Retailer 5
-
$3,791 SGD
View
Retailer 6
-
$3,965 SGD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$4,043 SGD
View
B+
Retailer 8
-
$4,177 SGD
View
B+
Retailer 9
-
$4,199 SGD
View
B+
Retailer 10
-
$4,623 SGD
View
B
Retailer 11
-
$4,666 SGD
View
B
Retailer 12
-
$4,839 SGD
View
B
Retailer 13
-
$5,985 SGD
View
B
Retailer 14
-
$6,613 SGD
View
Most Expensive
B
NZ Jewellers
7882e09e-f60e-485f-a5cf-6d3b55008840 · Nov 5
$7,045 SGD
$5,497 USD
View
14 more retailers have this diamond
Prices start from $3,328 SGDSave up to $3,717 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
$3,328 SGD