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Marquise|Lab Grown|IGI

1.55ct I SI1 Marquise Lab Grown Diamond

ID • I/SI1 • IGI LG436046738

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436046738

Diamond specifications and retailer prices

From $1,653 NZD
$930 USD
As of November 2, 2026
Save $7,211 NZD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,864 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436046738 or 436046738. Listed at 12 retailers as of November 1, 2026, with prices from $1,653 to $8,864, a $7,211 spread on the same certified stone. MOH London lists it at $8,864. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.55
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436046738
Dimensions11.23 × 6.17 × 3.90 mm
L/W Ratio1.82
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
11.23 mm6.17 mm1.55 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436046738
Side View
Table 58.5%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.2%

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 2
Current: $8,864 NZD|Low: $1,653 NZD|High: $8,970 NZD|Avg: $4,118 NZD
MOH London
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
Retailer 15
November 2, 2026
Retailer 8$1,653 NZD
Retailer 9$2,378 NZD
Retailer 13$2,588 NZD
Retailer 15$2,662 NZD
Retailer 10$2,758 NZD
Retailer 14$2,758 NZD
Retailer 3$3,066 NZD
Retailer 7$3,469 NZD
Retailer 5$3,791 NZD
Retailer 2$3,939 NZD
Retailer 11$4,360 NZD
Retailer 4$5,142 NZD
Retailer 12$5,170 NZD
Retailer 6$7,898 NZD
MOH London$8,864 NZD

39 data points across 15 retailers

12 retailers$1,653 NZD to $8,864 NZD

A
Cheapest Retailer
-
$1,653 NZD
$930 USD
B+
Retailer 2
-
$2,378 NZD
$1,338 USD
View
B+
Retailer 3
-
$2,588 NZD
$1,456 USD
View
B+
Retailer 4
-
$2,662 NZD
$1,498 USD
View
Final sale: no returns
Retailer 5
-
$2,758 NZD
$1,552 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$2,758 NZD
$1,552 USD
View
B+
Retailer 7
-
$3,066 NZD
$1,725 USD
View
B
Retailer 8
-
$3,939 NZD
£1,745 GBP
View
B
Retailer 9
-
$4,360 NZD
$2,453 USD
View
B
Retailer 10
-
$5,142 NZD
$2,893 USD
View
B
Retailer 11
-
$5,170 NZD
$2,909 USD
View
Most Expensive
B
MOH London
LG436046738 · Nov 1
$8,864 NZD
£3,927 GBP
View
11 more retailers have this diamond
Prices start from $1,653 NZDSave up to $7,211 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
1.55ct Marquise
$1,653 NZD