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Marquise|Lab Grown|IGI

1.65ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG830636393

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG830636393

Diamond specifications and retailer prices

From £193 GBP
$257 USD
As of October 27, 2026
Save £836 GBP (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,029 GBP at With Clarity · As of October 28, 2026
View at With Clarity

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG830636393 or 830636393. Listed at 13 retailers as of October 27, 2026, with prices from £193 to £1,029, a £836 spread on the same certified stone. With Clarity lists it at £1,029. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830636393
Dimensions11.62 × 6.17 × 3.92 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
11.62 mm6.17 mm1.65 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830636393
Side View
Table 62.0%Crown 38.1°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £965 GBP|Low: £193 GBP|High: £1,118 GBP|Avg: £681 GBP|-8.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
October 29, 2026
Retailer 10£193 GBP
Retailer 8£224 GBP
Retailer 4£282 GBP
Retailer 5£360 GBP
Retailer 7£395 GBP
Retailer 6£558 GBP
Retailer 9£736 GBP
Retailer 2£770 GBP
Retailer 11£875 GBP
Retailer 1£965 GBP
Retailer 3£1,009 GBP
With Clarity£1,029 GBP

30 data points across 12 retailers

13 retailers£193 GBP to £1,029 GBP

A
Cheapest Retailer
-
£193 GBP
$257 USD
A
Retailer 2
-
£224 GBP
$298 USD
View
A
Retailer 3
-
£282 GBP
View
A
Retailer 4
-
£360 GBP
$480 USD
View
A
Retailer 5
-
£395 GBP
€501 EUR
View
B+
Retailer 6
-
£556 GBP
$740 USD
View
A
Retailer 7
-
£558 GBP
A$1,144 AUD
View
B+
Retailer 8
-
£736 GBP
$980 USD
View
B+
Retailer 9
-
£770 GBP
$1,025 USD
View
B+
Retailer 10
-
£875 GBP
$1,165 USD
View
B
Retailer 11
-
£965 GBP
View
B
Retailer 12
-
£1,009 GBP
SGD 1,815 SGD
View
Price last confirmed 16 days ago
Most Expensive
B
With Clarity
830636393 · Oct 28
£1,029 GBP
$1,370 USD
View
12 more retailers have this diamond
Prices start from £193 GBPSave up to £836 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
1.65ct Marquise
£193 GBP