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Marquise|Natural|IGI

1.00ct I SI2 Marquise Natural Diamond

VG • I/SI2 • IGI 803629089

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 803629089

Diamond specifications and retailer prices

From $2,522 NZD
As of November 6, 2026
Save $2,387 NZD (49%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,042 NZD at NZ Jewellers · As of September 30, 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 803629089. Listed at 17 retailers as of November 2, 2026, with a 95% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceFaint
Crown angle38.5°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 803629089
Dimensions9.94 × 5.23 × 3.23 mm
L/W Ratio1.90
Girdle conditionFaceted
Top View
9.94 mm5.23 mm1.00 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 803629089
Side View
Table 68.0%Crown 38.5°Girdle: MED-THKPavilion 40.9°Culet: NoneDepth 61.8%

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: $2,522 NZD|Low: $2,442 NZD|High: $5,119 NZD|Avg: $3,246 NZD|+3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1$2,522 NZD
Retailer 4$2,533 NZD
Retailer 8$2,866 NZD
Retailer 10$2,888 NZD
Retailer 9$2,930 NZD
Retailer 11$2,964 NZD
Retailer 5$2,978 NZD
Retailer 2$3,332 NZD
Retailer 3$3,435 NZD
Retailer 6$3,828 NZD
Retailer 7$4,908 NZD

25 data points across 11 retailers

17 retailers$2,522 NZD to $4,908 NZD

A
Cheapest Retailer
-
$2,522 NZD
Final sale: no returns
A
Retailer 2
-
$2,533 NZD
View
B+
Retailer 3
-
$2,866 NZD
View
Retailer 4
-
$2,888 NZD
View
Price last confirmed 54 days ago
Retailer 5
-
$2,888 NZD
View
Price last confirmed 37 days ago
Retailer 6
-
$2,888 NZD
View
Price last confirmed 22 days ago
B+
Retailer 7
-
$2,930 NZD
View
B+
Retailer 8
-
$2,964 NZD
View
A
Retailer 9
-
$2,978 NZD
View
Retailer 10
-
$3,022 NZD
View
Price last confirmed 37 days ago
Retailer 11
-
$3,332 NZD
View
Price last confirmed 62 days ago
Retailer 12
-
$3,332 NZD
View
Price last confirmed 39 days ago
Retailer 13
-
$3,332 NZD
View
Price last confirmed 53 days ago
B+
Retailer 14
-
$3,828 NZD
View
B+
Retailer 15
-
$4,908 NZD
View
Retailer 16
-
$7,042 NZD
View
Price last confirmed 50 days ago
Most Expensive
NZ Jewellers
1a3dd88f-90c5-436a-9a72-1b621883f483 · Sep 30
$7,042 NZD
$3,904 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from $2,522 NZDSave up to $2,387 NZD

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
$2,522 NZD