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Marquise|Natural|IGI

1.02ct I SI1 Marquise Natural Diamond

GD • I/SI1 • IGI 490197349

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 490197349

Diamond specifications and retailer prices

From $1,629 USD
As of November 6, 2026
Save $2,944 USD (64%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,573 USD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.02ct natural marquise diamond

This 1.02ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI 490197349. Listed at 16 retailers as of November 3, 2026, with prices from $1,629 to $4,573, a $2,944 spread on the same certified stone. NZ Jewellers lists it at $4,573. 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

1.02
Carat
I
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryGood
FluorescenceFaint
Crown angle31.9°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 490197349
Dimensions8.21 × 5.09 × 3.54 mm
L/W Ratio1.61
Girdle conditionFaceted
Culet sizePointed
Top View
8.21 mm5.09 mm1.02 ctI / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateIGI 490197349
Side View
Table 51.5%Crown 31.9°Girdle: STK-ETKPavilion 40.9°Culet: NoneDepth 69.5%

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 6
Current: $4,573 USD|Low: $1,629 USD|High: $4,573 USD|Avg: $2,566 USD
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
November 6, 2026
Retailer 2$1,629 USD
Retailer 6$2,018 USD
Retailer 5$2,030 USD
Retailer 13$2,078 USD
Retailer 9$2,129 USD
Retailer 4$2,187 USD
Retailer 12$2,187 USD
Retailer 3$2,288 USD
Retailer 7$2,417 USD
Retailer 14$2,524 USD
Retailer 11$2,688 USD
Retailer 10$2,720 USD
Retailer 8$3,821 USD
NZ Jewellers$4,573 USD

29 data points across 14 retailers

16 retailers$1,629 USD to $4,573 USD

B+
Cheapest Retailer
-
$1,629 USD
B+
Retailer 2
-
$1,975 USD
View
B+
Retailer 3
-
$2,018 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,030 USD
View
B+
Retailer 5
-
$2,078 USD
View
B+
Retailer 6
-
$2,129 USD
View
B+
Retailer 7
-
$2,187 USD
View
Retailer 8
-
$2,187 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$2,205 USD
View
B+
Retailer 10
-
$2,288 USD
View
B+
Retailer 11
-
$2,417 USD
View
B+
Retailer 12
-
$2,524 USD
View
B+
Retailer 13
-
$2,688 USD
View
B+
Retailer 14
-
$2,720 USD
View
B
Retailer 15
-
$3,821 USD
View
Most Expensive
C
NZ Jewellers
b56b630e-bcbf-4ac9-9d45-6ea7030aedba · Nov 3
$4,573 USD
View
15 more retailers have this diamond
Prices start from $1,629 USDSave up to $2,944 USD

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+
1.02ct Marquise
$1,629 USD