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Marquise|Lab Grown|IGI

1.65ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG841645315

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841645315

Diamond specifications and retailer prices

From £193 GBP
$257 USD
As of October 23, 2026
Save £836 GBP (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,029 GBP at With Clarity · As of October 27, 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 LG841645315 or 841645315. Listed at 15 retailers as of October 23, 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 angle36.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841645315
Dimensions12.58 × 5.97 × 3.79 mm
L/W Ratio2.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.58 mm5.97 mm1.65 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841645315
Side View
Table 60.0%Crown 36.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 23
Current: £360 GBP|Low: £193 GBP|High: £1,084 GBP|Avg: £663 GBP|-3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
With Clarity
October 28, 2026
Retailer 13£193 GBP
Retailer 10£224 GBP
Retailer 6£281 GBP
Retailer 1£360 GBP
Retailer 7£395 GBP
Retailer 4£497 GBP
Retailer 9£562 GBP
Retailer 11£736 GBP
Retailer 3£770 GBP
Retailer 12£871 GBP
Retailer 2£875 GBP
Retailer 8£961 GBP
Retailer 5£1,009 GBP
With Clarity£1,029 GBP

21 data points across 14 retailers

15 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
-
£281 GBP
View
A
Retailer 4
-
£360 GBP
$480 USD
View
A
Retailer 5
-
£395 GBP
€501 EUR
View
A
Retailer 6
-
£497 GBP
$662 USD
View
Retailer 7
-
£556 GBP
$740 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£562 GBP
A$1,152 AUD
View
B+
Retailer 9
-
£736 GBP
$980 USD
View
B+
Retailer 10
-
£770 GBP
$1,025 USD
View
Retailer 11
-
£871 GBP
$1,160 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
£875 GBP
$1,165 USD
View
B
Retailer 13
-
£961 GBP
View
Retailer 14
-
£1,009 GBP
SGD 1,815 SGD
View
Price last confirmed 16 days ago
Most Expensive
B
With Clarity
841645315 · Oct 27
£1,029 GBP
$1,370 USD
View
14 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