Marquise|Lab Grown|IGI

1.28ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG843644433

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843644433

Diamond specifications and retailer prices

From $246 USD
As of October 28, 2026
Save $720 USD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $966 USD at Frank Darling · As of October 29, 2026
View at Frank Darling

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG843644433 or 843644433. Listed at 5 retailers as of October 28, 2026, with prices from $246 to $966, a $720 spread on the same certified stone. Frank Darling lists it at $966. 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843644433
Dimensions11.16 × 5.61 × 3.56 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.16 mm5.61 mm1.28 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843644433
Side View
Table 57.0%Crown 36.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $966 USD|Low: $246 USD|High: $973 USD|Avg: $637 USD|-0.7%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 3$246 USD
Retailer 5$372 USD
Retailer 6$550 USD
Retailer 2$661 USD
Retailer 4$885 USD
Frank Darling$966 USD

7 data points across 6 retailers

5 retailers$246 USD to $966 USD

A
Cheapest Retailer
-
$246 USD
Final sale: no returns
B+
Retailer 2
-
$372 USD
View
B+
Retailer 3
-
$595 USD
View
B+
Retailer 4
-
$885 USD
View
Most Expensive
B
Frank Darling
100752188425KD · Oct 29
$966 USD
View
4 more retailers have this diamond
Prices start from $246 USDSave up to $720 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
$246 USD