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Marquise|Lab Grown|IGI

1.60ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG841634626

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841634626

Diamond specifications and retailer prices

From $295 SGD
$231 USD
As of October 28, 2026
Save $2,019 SGD (87%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,314 SGD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.6ct lab-grown marquise diamond

This 1.6ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG841634626 or 841634626. Listed at 3 retailers as of October 28, 2026, with prices from $295 to $2,314, a $2,019 spread on the same certified stone. Brilliant Earth lists it at $2,314. 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

1.60
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841634626
Dimensions11.70 × 6.23 × 3.85 mm
L/W Ratio1.88
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.70 mm6.23 mm1.60 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841634626
Side View
Table 62.0%Crown 35.8°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $2,314 SGD|Low: $295 SGD|High: $2,314 SGD|Avg: $1,300 SGD
Brilliant Earth
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$295 SGD
Retailer 2$629 SGD
Brilliant Earth$2,314 SGD

27 data points across 3 retailers

3 retailers$295 SGD to $2,314 SGD

A
Cheapest Retailer
-
$295 SGD
$231 USD
Final sale: no returns
A
Retailer 2
-
$629 SGD
£388 GBP
View
Most Expensive
B
Brilliant Earth
21706267A · Oct 28
$2,314 SGD
$1,810 USD
View
2 more retailers have this diamond
Prices start from $295 SGDSave up to $2,019 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
1.60ct Marquise
$295 SGD