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Marquise|Lab Grown|IGI

1.55ct K SI1 Marquise Lab Grown Diamond

EX • K/SI1 • IGI LG436072673

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436072673

Diamond specifications and retailer prices

From $1,696 NZD
As of November 6, 2026
Save $4,960 NZD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,655 NZD at MOH London · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436072673 or 436072673. Listed at 9 retailers as of November 5, 2026, with prices from $1,696 to $6,655, a $4,960 spread on the same certified stone. MOH London lists it at $6,655. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436072673
Dimensions11.27 × 6.26 × 3.85 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
11.27 mm6.26 mm1.55 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436072673
Side View
Table 61.5%Crown 34°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,655 NZD|Low: $1,629 NZD|High: $6,763 NZD|Avg: $3,502 NZD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4$1,696 NZD
Retailer 5$1,968 NZD
Retailer 8$2,150 NZD
Retailer 2$2,282 NZD
Retailer 7$2,899 NZD
Retailer 6$3,150 NZD
Retailer 3$4,241 NZD
Retailer 9$5,632 NZD
MOH London$6,655 NZD

19 data points across 9 retailers

9 retailers$1,696 NZD to $6,655 NZD

A
Cheapest Retailer
-
$1,696 NZD
A
Retailer 2
-
$1,845 NZD
View
Retailer 3
-
$1,968 NZD
View
Price last confirmed 26 days ago
B+
Retailer 4
-
$1,968 NZD
View
B+
Retailer 5
-
$2,282 NZD
View
B+
Retailer 6
-
$3,150 NZD
View
B
Retailer 7
-
$4,241 NZD
View
B
Retailer 8
-
$5,533 NZD
View
Most Expensive
B
MOH London
LG436072673 · Nov 5
$6,655 NZD
£2,905 GBP
View
8 more retailers have this diamond
Prices start from $1,696 NZDSave up to $4,960 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
$1,696 NZD