CaratHunter
Plans
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 $257 USD
As of October 23, 2026
Save $1,113 USD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,370 USD 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 $257 to $1,370, a $1,113 spread on the same certified stone. With Clarity lists it at $1,370. 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
Color
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

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 23
Current: $480 USD|Low: $257 USD|High: $1,489 USD|Avg: $881 USD|-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$257 USD
Retailer 7$298 USD
Retailer 3$392 USD
Retailer 1$480 USD
Retailer 5$526 USD
Retailer 2$662 USD
Retailer 6$749 USD
Retailer 8$980 USD
Retailer 12$1,025 USD
Retailer 11$1,165 USD
Retailer 9$1,285 USD
Retailer 4$1,343 USD
With Clarity$1,370 USD

28 data points across 13 retailers

14 retailers$257 USD to $1,370 USD

A
Cheapest Retailer
-
$257 USD
A
Retailer 2
-
$298 USD
View
A
Retailer 3
-
$392 USD
£309 GBP
View
Price last confirmed 14 days ago
A
Retailer 4
-
$480 USD
View
A
Retailer 5
-
$526 USD
€501 EUR
View
A
Retailer 6
-
$662 USD
View
B+
Retailer 7
-
$749 USD
A$1,152 AUD
View
B+
Retailer 8
-
$775 USD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
$980 USD
View
B+
Retailer 10
-
$1,025 USD
View
B+
Retailer 11
-
$1,165 USD
View
B
Retailer 12
-
$1,285 USD
£1,012 GBP
View
Price last confirmed 8 days ago
B
Retailer 13
-
$1,343 USD
SGD 1,815 SGD
View
Price last confirmed 16 days ago
Most Expensive
B
With Clarity
831643841 · Oct 27
$1,370 USD
View
13 more retailers have this diamond
Prices start from $257 USDSave up to $1,113 USD

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
$257 USD