Marquise|Lab Grown|IGI

1.28ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG843612889

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843612889

Diamond specifications and retailer prices

From $231 USD
As of October 30, 2026
Save $1,369 USD (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,600 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown marquise diamond

This 1.28ct 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 LG843612889 or 843612889. Listed at 11 retailers as of October 29, 2026, with prices from $231 to $1,600, a $1,369 spread on the same certified stone. Do Amore Diamonds lists it at $1,600. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843612889
Dimensions11.21 × 5.60 × 3.52 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.21 mm5.60 mm1.28 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843612889
Side View
Table 59.0%Crown 34.4°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 62.9%

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 30
Current: $1,600 USD|Low: $231 USD|High: $1,600 USD|Avg: $744 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 9$231 USD
Retailer 3$346 USD
Retailer 5$357 USD
Retailer 7$375 USD
Retailer 6$531 USD
Retailer 11$630 USD
Retailer 2$830 USD
Retailer 10$1,084 USD
Retailer 8$1,144 USD
Retailer 4$1,217 USD
Do Amore Diamonds$1,600 USD

4 data points across 11 retailers

11 retailers$231 USD to $1,600 USD

A
Cheapest Retailer
-
$231 USD
Final sale: no returns
B+
Retailer 2
-
$346 USD
View
A
Retailer 3
-
$357 USD
£281 GBP
View
A
Retailer 4
-
$375 USD
View
A
Retailer 5
-
$531 USD
£418 GBP
View
B+
Retailer 6
-
$630 USD
View
B
Retailer 7
-
$830 USD
View
B
Retailer 8
-
$1,084 USD
View
B
Retailer 9
-
$1,144 USD
£901 GBP
View
B
Retailer 10
-
$1,217 USD
View
Most Expensive
B
Do Amore Diamonds
36-2097329 · Oct 29
$1,600 USD
View
10 more retailers have this diamond
Prices start from $231 USDSave up to $1,369 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
1.28ct Marquise
$231 USD