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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 $1,201 SGD
As of November 6, 2026
Save $3,512 SGD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,712 SGD 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 $1,201 to $4,712, a $3,512 spread on the same certified stone. MOH London lists it at $4,712. 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: $4,712 SGD|Low: $1,153 SGD|High: $4,789 SGD|Avg: $2,480 SGD|-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$1,201 SGD
Retailer 5$1,394 SGD
Retailer 8$1,523 SGD
Retailer 2$1,616 SGD
Retailer 7$2,053 SGD
Retailer 6$2,230 SGD
Retailer 3$3,003 SGD
Retailer 9$3,988 SGD
MOH London$4,712 SGD

19 data points across 9 retailers

9 retailers$1,201 SGD to $4,712 SGD

A
Cheapest Retailer
-
$1,201 SGD
A
Retailer 2
-
$1,307 SGD
View
Retailer 3
-
$1,394 SGD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
$1,394 SGD
View
B+
Retailer 5
-
$1,616 SGD
View
B+
Retailer 6
-
$2,230 SGD
View
B
Retailer 7
-
$3,003 SGD
View
B
Retailer 8
-
$3,917 SGD
View
Most Expensive
B
MOH London
LG436072673 · Nov 5
$4,712 SGD
£2,905 GBP
View
8 more retailers have this diamond
Prices start from $1,201 SGDSave up to $3,512 SGD

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
$1,201 SGD