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 £184 GBP
$246 USD
As of October 30, 2026
Save £537 GBP (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £721 GBP at Frank Darling · As of October 31, 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 30, 2026, with prices from £184 to £721, a £537 spread on the same certified stone. Frank Darling lists it at £721. 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
Colour
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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £721 GBP|Low: £184 GBP|High: £726 GBP|Avg: £476 GBP|-0.7%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 3£184 GBP
Retailer 5£278 GBP
Retailer 6£411 GBP
Retailer 2£493 GBP
Retailer 4£661 GBP
Frank Darling£721 GBP

7 data points across 6 retailers

5 retailers£184 GBP to £721 GBP

A
Cheapest Retailer
-
£184 GBP
$246 USD
Final sale: no returns
B+
Retailer 2
-
£278 GBP
$372 USD
View
B+
Retailer 3
-
£444 GBP
$595 USD
View
B+
Retailer 4
-
£661 GBP
$885 USD
View
Most Expensive
B
Frank Darling
100752188425KD · Oct 31
£721 GBP
$966 USD
View
4 more retailers have this diamond
Prices start from £184 GBPSave up to £537 GBP

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
£184 GBP