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Marquise|Natural|IGI

1.00ct I VS1 Marquise Natural Diamond

VG • I/VS1 • IGI 801639655

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 801639655

Diamond specifications and retailer prices

From $2,781 SGD
As of November 1, 2026
Save $3,929 SGD (59%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,710 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 801639655. Listed at 18 retailers as of November 1, 2026, with prices from $2,781 to $6,710, a $3,929 spread on the same certified stone. NZ Jewellers lists it at $6,710. 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

1.00
Carat
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle38.3°
OriginNatural
Grading LabIGI
CertificateIGI 801639655
Dimensions9.28 × 5.33 × 3.37 mm
L/W Ratio1.74
Girdle conditionFaceted
Top View
9.28 mm5.33 mm1.00 ctI / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 801639655
Side View
Table 57.0%Crown 35.7°Girdle: STK-THKPavilion 38.3°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $6,710 SGD|Low: $2,780 SGD|High: $6,868 SGD|Avg: $3,779 SGD|-2.3%
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
November 6, 2026
Retailer 9$2,871 SGD
Retailer 15$2,899 SGD
Retailer 16$2,962 SGD
Retailer 2$3,050 SGD
Retailer 8$3,067 SGD
Retailer 14$3,185 SGD
Retailer 13$3,209 SGD
Retailer 7$3,285 SGD
Retailer 17$3,358 SGD
Retailer 10$3,389 SGD
Retailer 11$3,436 SGD
Retailer 4$3,704 SGD
Retailer 12$3,917 SGD
Retailer 5$4,084 SGD
Retailer 3$4,628 SGD
Retailer 6$5,754 SGD
NZ Jewellers$6,710 SGD

29 data points across 17 retailers

18 retailers$2,781 SGD to $6,710 SGD

A
Cheapest Retailer
-
$2,781 SGD
A
Retailer 2
-
$2,871 SGD
View
A
Retailer 3
-
$2,899 SGD
View
A
Retailer 4
-
$2,962 SGD
View
Final sale: no returns
A
Retailer 5
-
$3,050 SGD
View
A
Retailer 6
-
$3,067 SGD
View
A
Retailer 7
-
$3,185 SGD
View
A
Retailer 8
-
$3,209 SGD
View
Retailer 9
-
$3,285 SGD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$3,358 SGD
View
A
Retailer 11
-
$3,389 SGD
View
A
Retailer 12
-
$3,436 SGD
View
A
Retailer 13
-
$3,704 SGD
View
A
Retailer 14
-
$3,917 SGD
View
A
Retailer 15
-
$4,084 SGD
View
B+
Retailer 16
-
$4,628 SGD
View
B
Retailer 17
-
$5,754 SGD
View
Most Expensive
B
NZ Jewellers
436f37b0-8822-4d96-98af-ae1026f10194 · Nov 5
$6,710 SGD
$5,236 USD
View
17 more retailers have this diamond
Prices start from $2,781 SGDSave up to $3,929 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
1.00ct Marquise
$2,781 SGD