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Marquise|Natural|IGI

1.00ct I SI2 Marquise Natural Diamond

VG • I/SI2 • IGI 825618962

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 825618962

Diamond specifications and retailer prices

From $2,426 NZD
As of November 6, 2026
Save $5,522 NZD (69%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,948 NZD 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 825618962. Listed at 14 retailers as of November 5, 2026, with prices from $2,426 to $7,948, a $5,522 spread on the same certified stone. NZ Jewellers lists it at $7,948. 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 angle36.2°
Pavilion angle32°
OriginNatural
Grading LabIGI
CertificateIGI 825618962
Dimensions13.21 × 4.58 × 2.67 mm
L/W Ratio2.88
Girdle conditionFaceted
Culet sizeNone
Top View
13.21 mm4.58 mm1.00 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 825618962
Side View
Table 60.0%Crown 36.2°Girdle: STK-VTKPavilion 32°Culet: NoneDepth 58.3%

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 6
Current: $7,948 NZD|Low: $2,426 NZD|High: $7,948 NZD|Avg: $3,930 NZD
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$2,426 NZD
Retailer 11$2,969 NZD
Retailer 10$3,258 NZD
Retailer 12$3,258 NZD
Retailer 9$3,409 NZD
Retailer 3$3,415 NZD
Retailer 4$3,505 NZD
Retailer 13$3,554 NZD
Retailer 8$3,581 NZD
Retailer 5$3,759 NZD
Retailer 6$4,133 NZD
Retailer 7$5,691 NZD
NZ Jewellers$7,948 NZD

45 data points across 13 retailers

14 retailers$2,426 NZD to $7,948 NZD

A
Cheapest Retailer
-
$2,426 NZD
B+
Retailer 2
-
$2,969 NZD
View
B+
Retailer 3
-
$3,258 NZD
View
Retailer 4
-
$3,258 NZD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$3,409 NZD
View
B+
Retailer 6
-
$3,415 NZD
View
B+
Retailer 7
-
$3,505 NZD
View
B+
Retailer 8
-
$3,554 NZD
View
B+
Retailer 9
-
$3,581 NZD
View
B+
Retailer 10
-
$3,759 NZD
View
Retailer 11
-
$4,026 NZD
View
Price last confirmed 62 days ago
B+
Retailer 12
-
$4,133 NZD
View
B
Retailer 13
-
$5,691 NZD
View
Most Expensive
C
NZ Jewellers
e48479fd-feb9-4893-b88b-db6eb0ab4328 · Nov 5
$7,948 NZD
$4,406 USD
View
13 more retailers have this diamond
Prices start from $2,426 NZDSave up to $5,522 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
$2,426 NZD