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Marquise|Lab Grown|IGI

1.31ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG818645562

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818645562

Diamond specifications and retailer prices

From $218 USD
As of October 28, 2026
Save $963 USD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,181 USD at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 1.31ct lab-grown marquise diamond

This 1.31ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818645562 or 818645562. Listed at 15 retailers as of October 28, 2026, with prices from $218 to $1,181, a $963 spread on the same certified stone. Reve Diamonds lists it at $1,181. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818645562
Dimensions12.66 × 5.31 × 3.43 mm
L/W Ratio2.38
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.66 mm5.31 mm1.31 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818645562
Side View
Table 61.0%Crown 31.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
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 28
Current: $443 USD|Low: $218 USD|High: $1,200 USD|Avg: $590 USD|+3.1%
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
Reve Diamonds
October 29, 2026
Retailer 2$218 USD
Retailer 12$269 USD
Retailer 6$306 USD
Retailer 3$328 USD
Retailer 7$418 USD
Retailer 9$426 USD
Retailer 1$443 USD
Retailer 11$497 USD
Retailer 8$593 USD
Retailer 13$621 USD
Retailer 5$815 USD
Retailer 4$835 USD
Retailer 10$1,139 USD
Reve Diamonds$1,181 USD

39 data points across 14 retailers

15 retailers$218 USD to $1,181 USD

A
Cheapest Retailer
-
$218 USD
Final sale: no returns
Retailer 2
-
$247 USD
View
Price last confirmed 32 days ago
A
Retailer 3
-
$269 USD
HK$2,100 HKD
View
A
Retailer 4
-
$306 USD
£241 GBP
View
B+
Retailer 5
-
$328 USD
View
A
Retailer 6
-
$418 USD
ZAR 6,747 ZAR
View
A
Retailer 7
-
$426 USD
€406 EUR
View
A
Retailer 8
-
$443 USD
£349 GBP
View
A
Retailer 9
-
$497 USD
View
B+
Retailer 10
-
$593 USD
A$913 AUD
View
B+
Retailer 11
-
$621 USD
View
Retailer 12
-
$815 USD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$835 USD
View
B
Retailer 14
-
$1,139 USD
£897 GBP
View
Most Expensive
B
Reve Diamonds
3B70A2503 · Oct 28
$1,181 USD
View
14 more retailers have this diamond
Prices start from $218 USDSave up to $963 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
1.31ct Marquise
$218 USD