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Marquise|Natural|IGI

1.00ct J SI1 Marquise Natural Diamond

VG • J/SI1 • IGI 689598934

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 689598934

Diamond specifications and retailer prices

From $2,529 NZD
As of November 6, 2026
Save $2,271 NZD (47%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,225 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 689598934. Listed at 20 retailers as of November 1, 2026, with a 90% 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
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.7°
Pavilion angle39.7°
OriginNatural
Grading LabIGI
CertificateIGI 689598934
Dimensions9.42 × 5.28 × 3.42 mm
L/W Ratio1.78
Girdle conditionFaceted
Culet sizePointed
Top View
9.42 mm5.28 mm1.00 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 689598934
Side View
Table 56.0%Crown 37.7°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 64.8%

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: $3,079 NZD|Low: $2,506 NZD|High: $5,249 NZD|Avg: $3,132 NZD|-4.2%
Retailer 1
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 13$2,529 NZD
Retailer 3$2,540 NZD
Retailer 8$2,553 NZD
Retailer 4$2,735 NZD
Retailer 2$2,742 NZD
Retailer 12$2,742 NZD
Retailer 14$2,865 NZD
Retailer 11$2,904 NZD
Retailer 6$2,985 NZD
Retailer 1$3,079 NZD
Retailer 5$3,162 NZD
Retailer 7$3,344 NZD
Retailer 9$3,727 NZD
Retailer 10$4,800 NZD

44 data points across 14 retailers

20 retailers$2,529 NZD to $4,800 NZD

A
Cheapest Retailer
-
$2,529 NZD
Final sale: no returns
A
Retailer 2
-
$2,540 NZD
View
A
Retailer 3
-
$2,553 NZD
View
A
Retailer 4
-
$2,735 NZD
View
Retailer 5
-
$2,742 NZD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$2,742 NZD
View
A
Retailer 7
-
$2,865 NZD
View
B+
Retailer 8
-
$2,904 NZD
View
Retailer 9
-
$2,962 NZD
View
Price last confirmed 54 days ago
Retailer 10
-
$2,962 NZD
View
Price last confirmed 37 days ago
B+
Retailer 11
-
$2,985 NZD
View
A
Retailer 12
-
$3,079 NZD
View
Retailer 13
-
$3,099 NZD
View
Price last confirmed 37 days ago
B+
Retailer 14
-
$3,162 NZD
View
B+
Retailer 15
-
$3,344 NZD
View
Retailer 16
-
$3,418 NZD
View
Price last confirmed 57 days ago
Retailer 17
-
$3,418 NZD
View
Price last confirmed 39 days ago
B+
Retailer 18
-
$3,727 NZD
View
B
Retailer 19
-
$4,800 NZD
View
Most Expensive
NZ Jewellers
36f09cd1-85cf-45be-90c3-571855ff41b1 · Sep 30
$7,225 NZD
$4,005 USD
View
Price last confirmed 37 days ago
19 more retailers have this diamond
Prices start from $2,529 NZDSave up to $2,271 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
$2,529 NZD