Marquise|Lab Grown|IGI

1.53ct K SI1 Marquise Lab Grown Diamond

EX • K/SI1 • IGI LG436074723

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436074723

Diamond specifications and retailer prices

From $929 USD
As of November 6, 2026
Save $2,715 USD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,644 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.53ct lab-grown marquise diamond

This 1.53ct 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 LG436074723 or 436074723. Listed at 9 retailers as of November 5, 2026, with prices from $929 to $3,644, a $2,715 spread on the same certified stone. MOH London lists it at $3,644. 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

1.53
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074723
Dimensions11.14 × 6.17 × 3.92 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
11.14 mm6.17 mm1.53 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436074723
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 63.5%

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: $3,644 USD|Low: $891 USD|High: $3,697 USD|Avg: $1,935 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4$929 USD
Retailer 5$1,077 USD
Retailer 8$1,167 USD
Retailer 2$1,250 USD
Retailer 7$1,590 USD
Retailer 6$1,726 USD
Retailer 3$2,396 USD
Retailer 9$3,084 USD
MOH London$3,644 USD

17 data points across 9 retailers

9 retailers$929 USD to $3,644 USD

A
Cheapest Retailer
-
$929 USD
A
Retailer 2
-
$1,010 USD
View
A
Retailer 3
-
$1,077 USD
View
Retailer 4
-
$1,077 USD
View
Price last confirmed 25 days ago
A
Retailer 5
-
$1,250 USD
View
B+
Retailer 6
-
$1,726 USD
View
B
Retailer 7
-
$2,396 USD
View
B
Retailer 8
-
$3,029 USD
View
Most Expensive
B
MOH London
LG436074723 · Nov 5
$3,644 USD
£2,869 GBP
View
8 more retailers have this diamond
Prices start from $929 USDSave up to $2,715 USD

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
1.53ct Marquise
$929 USD