Marquise|Natural|IGI

1.80ct I IF Marquise Natural Diamond

VG • I/IF • IGI 803680468

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 803680468

Diamond specifications and retailer prices

From $20,846 NZD
As of November 4, 2026
Save $13,078 NZD (39%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $33,924 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.8ct natural marquise diamond

This 1.8ct natural marquise sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 803680468. Listed at 14 retailers as of November 4, 2026, with prices from $20,846 to $33,924, a $13,078 spread on the same certified stone. NZ Jewellers lists it at $33,924. 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

1.80
Carat
I
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle41°
Pavilion angle37.6°
OriginNatural
Grading LabIGI
CertificateIGI 803680468
Dimensions12.12 × 6.08 × 3.90 mm
L/W Ratio1.99
Girdle conditionFaceted
Top View
12.12 mm6.08 mm1.80 ctI / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 803680468
Side View
Table 59.0%Crown 41°Girdle: STK-THKPavilion 37.6°Culet: NoneDepth 64.1%

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 4
Current: $33,924 NZD|Low: $20,595 NZD|High: $33,924 NZD|Avg: $25,033 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 7, 2026
Retailer 5$20,846 NZD
Retailer 9$21,531 NZD
Retailer 11$21,905 NZD
Retailer 13$22,107 NZD
Retailer 2$22,109 NZD
Retailer 12$22,468 NZD
Retailer 10$23,965 NZD
Retailer 3$24,340 NZD
Retailer 4$24,934 NZD
Retailer 6$25,502 NZD
Retailer 7$29,696 NZD
Retailer 8$31,704 NZD
NZ Jewellers$33,924 NZD

45 data points across 13 retailers

14 retailers$20,846 NZD to $33,924 NZD

B+
Cheapest Retailer
-
$20,846 NZD
B+
Retailer 2
-
$21,531 NZD
View
Final sale: no returns
B+
Retailer 3
-
$22,107 NZD
View
B+
Retailer 4
-
$22,109 NZD
View
Retailer 5
-
$22,468 NZD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$23,965 NZD
View
B+
Retailer 7
-
$24,340 NZD
View
B+
Retailer 8
-
$24,383 NZD
View
B+
Retailer 9
-
$24,934 NZD
View
B
Retailer 10
-
$25,276 NZD
View
B+
Retailer 11
-
$25,502 NZD
View
B
Retailer 12
-
$29,696 NZD
View
B
Retailer 13
-
$31,704 NZD
View
Most Expensive
B
NZ Jewellers
5f5c84e8-12f0-4e2f-a607-ec4e5fbceaea · Nov 5
$33,924 NZD
$18,806 USD
View
13 more retailers have this diamond
Prices start from $20,846 NZDSave up to $13,078 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.

B+
1.80ct Marquise
$20,846 NZD