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 £690 GBP
As of November 6, 2026
Save £2,017 GBP (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,707 GBP 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 £690 to £2,707, a £2,017 spread on the same certified stone. MOH London lists it at £2,707. 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
Colour
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

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £2,707 GBP|Low: £662 GBP|High: £2,747 GBP|Avg: £1,438 GBP|-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£690 GBP
Retailer 5£800 GBP
Retailer 8£867 GBP
Retailer 2£929 GBP
Retailer 7£1,181 GBP
Retailer 6£1,282 GBP
Retailer 3£1,780 GBP
Retailer 9£2,291 GBP
MOH London£2,707 GBP

17 data points across 9 retailers

9 retailers£690 GBP to £2,707 GBP

A
Cheapest Retailer
-
£690 GBP
A
Retailer 2
-
£750 GBP
View
A
Retailer 3
-
£800 GBP
View
Retailer 4
-
£800 GBP
View
Price last confirmed 25 days ago
A
Retailer 5
-
£929 GBP
View
B+
Retailer 6
-
£1,282 GBP
View
B
Retailer 7
-
£1,780 GBP
View
B
Retailer 8
-
£2,251 GBP
View
Most Expensive
B
MOH London
LG436074723 · Nov 5
£2,707 GBP
View
8 more retailers have this diamond
Prices start from £690 GBPSave up to £2,017 GBP

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
£690 GBP