Marquise|Lab Grown|IGI

1.29ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG778665185

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG778665185

Diamond specifications and retailer prices

From $269 USD
HK$2,100 HKD
As of October 28, 2026
Save $870 USD (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,139 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.29ct lab-grown marquise diamond

This 1.29ct 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 LG778665185 or 778665185. Listed at 10 retailers as of October 28, 2026, with prices from $269 to $1,139, a $870 spread on the same certified stone. MOH London lists it at $1,139. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778665185
Dimensions11.49 × 5.69 × 3.38 mm
L/W Ratio2.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.49 mm5.69 mm1.29 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778665185
Side View
Table 60.0%Crown 34.2°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 59.4%

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: $1,139 USD|Low: $269 USD|High: $1,170 USD|Avg: $607 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 5$269 USD
Retailer 7$328 USD
Retailer 3$410 USD
Retailer 2$441 USD
Retailer 4$485 USD
Retailer 6$491 USD
Retailer 9$645 USD
Retailer 8$833 USD
Retailer 10$990 USD
MOH London$1,139 USD

40 data points across 10 retailers

10 retailers$269 USD to $1,139 USD

A
Cheapest Retailer
-
$269 USD
HK$2,100 HKD
B+
Retailer 2
-
$328 USD
View
A
Retailer 3
-
$410 USD
€390 EUR
View
A
Retailer 4
-
$441 USD
£348 GBP
View
A
Retailer 5
-
$485 USD
View
A
Retailer 6
-
$491 USD
View
B+
Retailer 7
-
$645 USD
View
Price last confirmed 22 days ago
B
Retailer 8
-
$804 USD
View
Price last confirmed 50 days ago
B
Retailer 9
-
$833 USD
View
Most Expensive
B
MOH London
LG778665185 · Oct 29
$1,139 USD
£897 GBP
View
9 more retailers have this diamond
Prices start from $269 USDSave up to $870 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
1.29ct Marquise
$269 USD