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Marquise|Lab Grown|IGI

1.28ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG843637980

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843637980

Diamond specifications and retailer prices

From £265 GBP
$355 USD
As of October 30, 2026
Save £798 GBP (75%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,063 GBP at Michael Trio · As of October 31, 2026
View at Michael Trio

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 LG843637980 or 843637980. Listed at 8 retailers as of October 30, 2026, with prices from £265 to £1,063, a £798 spread on the same certified stone. Michael Trio lists it at £1,063. 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 angle37.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843637980
Dimensions10.96 × 5.60 × 3.56 mm
L/W Ratio1.96
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.96 mm5.60 mm1.28 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843637980
Side View
Table 60.0%Crown 37.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,063 GBP|Low: £265 GBP|High: £1,081 GBP|Avg: £591 GBP|-1.6%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 7£265 GBP
Retailer 3£358 GBP
Retailer 6£435 GBP
Retailer 5£459 GBP
Retailer 2£663 GBP
Retailer 4£669 GBP
Retailer 8£796 GBP
Michael Trio£1,063 GBP

4 data points across 8 retailers

8 retailers£265 GBP to £1,063 GBP

B+
Cheapest Retailer
-
£265 GBP
$355 USD
A
Retailer 2
-
£358 GBP
View
A
Retailer 3
-
£435 GBP
$583 USD
View
A
Retailer 4
-
£459 GBP
$615 USD
View
B+
Retailer 5
-
£663 GBP
$889 USD
View
B+
Retailer 6
-
£669 GBP
$897 USD
View
B
Retailer 7
-
£796 GBP
View
Most Expensive
B
Michael Trio
1471274854 · Oct 31
£1,063 GBP
SGD 1,925 SGD
View
7 more retailers have this diamond
Prices start from £265 GBPSave up to £798 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
£265 GBP