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Marquise|Lab Grown|IGI

1.65ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG831643841

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831643841

Diamond specifications and retailer prices

From €231 EUR
$257 USD
As of October 23, 2026
Save €1,000 EUR (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,231 EUR 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 LG831643841 or 831643841. Listed at 14 retailers as of October 23, 2026, with prices from €231 to €1,231, a €1,000 spread on the same certified stone. With Clarity lists it at €1,231. 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 angle34.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831643841
Dimensions12.53 × 6.23 × 3.77 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.53 mm6.23 mm1.65 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831643841
Side View
Table 63.0%Crown 34.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.5%

Caratlytics Score

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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 23
Current: €431 EUR|Low: €231 EUR|High: €1,338 EUR|Avg: €791 EUR|-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
With Clarity
October 28, 2026
Retailer 10€231 EUR
Retailer 7€268 EUR
Retailer 3€353 EUR
Retailer 1€431 EUR
Retailer 5€473 EUR
Retailer 2€595 EUR
Retailer 6€673 EUR
Retailer 8€881 EUR
Retailer 12€921 EUR
Retailer 11€1,047 EUR
Retailer 9€1,155 EUR
Retailer 4€1,207 EUR
With Clarity€1,231 EUR

28 data points across 13 retailers

14 retailers€231 EUR to €1,231 EUR

A
Cheapest Retailer
-
€231 EUR
$257 USD
A
Retailer 2
-
€268 EUR
$298 USD
View
A
Retailer 3
-
€353 EUR
£309 GBP
View
Price last confirmed 14 days ago
A
Retailer 4
-
€431 EUR
$480 USD
View
A
Retailer 5
-
€473 EUR
View
A
Retailer 6
-
€595 EUR
$662 USD
View
B+
Retailer 7
-
€673 EUR
A$1,152 AUD
View
B+
Retailer 8
-
€696 EUR
$775 USD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
€881 EUR
$980 USD
View
B+
Retailer 10
-
€921 EUR
$1,025 USD
View
B+
Retailer 11
-
€1,047 EUR
$1,165 USD
View
B
Retailer 12
-
€1,155 EUR
£1,012 GBP
View
Price last confirmed 8 days ago
B
Retailer 13
-
€1,207 EUR
SGD 1,815 SGD
View
Price last confirmed 16 days ago
Most Expensive
B
With Clarity
831643841 · Oct 27
€1,231 EUR
$1,370 USD
View
13 more retailers have this diamond
Prices start from €231 EURSave up to €1,000 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
1.65ct Marquise
€231 EUR