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Marquise|Lab Grown|IGI

1.65ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG353426327

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG353426327

Diamond specifications and retailer prices

From £3,342 GBP
$4,450 USD
As of October 28, 2026
2 retailers carry this diamond
Most expensive: £6,833 GBP at Do Amore Diamonds · As of October 28, 2026
View at Do Amore Diamonds

About this 1.65ct lab-grown marquise diamond

This 1.65ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG353426327 or 353426327. Listed at 2 retailers as of October 28, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.65
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG353426327
Dimensions11.64 × 6.23 × 3.94 mm
L/W Ratio1.87
Culet sizeNone
Top View
11.64 mm6.23 mm1.65 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG353426327
Side View
Table 58.0%Crown 35°GirdlePavilion 40°Culet: NoneDepth 63.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: £6,833 GBP|Low: £3,342 GBP|High: £6,833 GBP|Avg: £5,089 GBP
Do Amore Diamonds
Retailer 2
October 9, 2026
Retailer 2£3,342 GBP
Do Amore Diamonds£6,833 GBP

2 data points across 2 retailers

2 retailers

B
Cheapest Retailer
-
£3,342 GBP
$4,450 USD
Most Expensive
B
Do Amore Diamonds
32-353426327 · Oct 28
£6,833 GBP
$9,100 USD
View
Price under review
1 more retailer has this diamond
Prices start from £3,342 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.

B
1.65ct Marquise
£3,342 GBP