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Marquise|Natural|IGI

1.00ct I SI2 Marquise Natural Diamond

VG • I/SI2 • IGI 825619090

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 825619090

Diamond specifications and retailer prices

From $1,683 SGD
As of November 6, 2026
Save $3,832 SGD (69%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,515 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 825619090. Listed at 14 retailers as of November 5, 2026, with prices from $1,683 to $5,515, a $3,832 spread on the same certified stone. NZ Jewellers lists it at $5,515. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle39.9°
OriginNatural
Grading LabIGI
CertificateIGI 825619090
Dimensions9.71 × 5.11 × 3.32 mm
L/W Ratio1.90
Girdle conditionFaceted
Top View
9.71 mm5.11 mm1.00 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 825619090
Side View
Table 60.0%Crown 38.3°Girdle: STK-VTKPavilion 39.9°Culet: NoneDepth 65.0%

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 6
Current: $5,515 SGD|Low: $1,683 SGD|High: $5,515 SGD|Avg: $2,728 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
November 6, 2026
Retailer 2$1,683 SGD
Retailer 12$2,061 SGD
Retailer 10$2,261 SGD
Retailer 11$2,261 SGD
Retailer 9$2,365 SGD
Retailer 3$2,367 SGD
Retailer 4$2,436 SGD
Retailer 13$2,473 SGD
Retailer 8$2,486 SGD
Retailer 5$2,608 SGD
Retailer 6$2,866 SGD
Retailer 7$3,950 SGD
NZ Jewellers$5,515 SGD

45 data points across 13 retailers

14 retailers$1,683 SGD to $5,515 SGD

A
Cheapest Retailer
-
$1,683 SGD
B+
Retailer 2
-
$2,061 SGD
View
Retailer 3
-
$2,261 SGD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$2,261 SGD
View
B+
Retailer 5
-
$2,365 SGD
View
B+
Retailer 6
-
$2,367 SGD
View
B+
Retailer 7
-
$2,436 SGD
View
B+
Retailer 8
-
$2,473 SGD
View
B+
Retailer 9
-
$2,486 SGD
View
B+
Retailer 10
-
$2,608 SGD
View
B+
Retailer 11
-
$2,866 SGD
View
Retailer 12
-
$2,984 SGD
View
Price last confirmed 61 days ago
B
Retailer 13
-
$3,950 SGD
View
Most Expensive
B
NZ Jewellers
9ac19a1d-c571-4bc1-ac06-51c02786f755 · Nov 5
$5,515 SGD
$4,303 USD
View
13 more retailers have this diamond
Prices start from $1,683 SGDSave up to $3,832 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
$1,683 SGD