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Marquise|Lab Grown|IGI

1.53ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • IGI LG826651177

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG826651177

Diamond specifications and retailer prices

From €213 EUR
$238 USD
As of October 30, 2026
Save €977 EUR (82%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €1,190 EUR at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG826651177 or 826651177. Listed at 3 retailers as of October 26, 2026, with prices from €213 to €1,190, a €977 spread on the same certified stone. Brilliant Earth lists it at €1,190. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826651177
Dimensions11.43 × 6.12 × 3.82 mm
L/W Ratio1.87
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.43 mm6.12 mm1.53 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826651177
Side View
Table 60.0%Crown 35.7°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €1,190 EUR|Low: €213 EUR|High: €1,190 EUR|Avg: €587 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
October 27, 2026
Retailer 3€213 EUR
Retailer 4€406 EUR
Retailer 2€438 EUR
Brilliant Earth€1,190 EUR

32 data points across 4 retailers

3 retailers€213 EUR to €1,190 EUR

A
Cheapest Retailer
-
€213 EUR
$238 USD
Final sale: no returns
A
Retailer 2
-
€438 EUR
£386 GBP
View
Most Expensive
B
Brilliant Earth
21229727A · Oct 26
€1,190 EUR
$1,330 USD
View
2 more retailers have this diamond
Prices start from €213 EURSave up to €977 EUR

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
€213 EUR