Marquise|Lab Grown|IGI

1.27ct E VVS1 Marquise Lab Grown Diamond

ID • E/VVS1 • IGI LG818637087

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818637087

Diamond specifications and retailer prices

From £342 GBP
€436 EUR
As of October 27, 2026
Save £651 GBP (66%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,028 GBP at Michael Trio · As of October 21, 2026
View at Michael Trio

About this 1.27ct lab-grown marquise diamond

This 1.27ct 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 LG818637087 or 818637087. Listed at 14 retailers as of October 26, 2026, with a 191% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818637087
Dimensions11.97 × 5.39 × 3.35 mm
L/W Ratio2.22
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.97 mm5.39 mm1.27 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG818637087
Side View
Table 59.0%Crown 38°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 62.2%

Caratlytics Score

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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 27
Current: £1,028 GBP|Low: £160 GBP|High: £1,060 GBP|Avg: £541 GBP|+1.7%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 25, 2026
Retailer 13£165 GBP
Retailer 5£250 GBP
Retailer 4£314 GBP
Retailer 10£328 GBP
Retailer 2£342 GBP
Retailer 12£425 GBP
Retailer 6£450 GBP
Retailer 7£590 GBP
Retailer 11£622 GBP
Retailer 8£628 GBP
Retailer 3£664 GBP
Retailer 9£860 GBP
Retailer 14£993 GBP
Michael Trio£1,028 GBP

33 data points across 14 retailers

14 retailers£342 GBP to £993 GBP

Retailer 1
-
£250 GBP
$335 USD
Price last confirmed 13 days ago
Retailer 2
-
£314 GBP
ZAR 6,807 ZAR
View
Price last confirmed 12 days ago
Retailer 3
-
£328 GBP
View
Price last confirmed 10 days ago
A
Retailer 4
-
£342 GBP
€436 EUR
View
Retailer 5
-
£425 GBP
$569 USD
View
Price last confirmed 11 days ago
Retailer 6
-
£450 GBP
$603 USD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£552 GBP
$740 USD
View
Retailer 8
-
£590 GBP
$791 USD
View
Price last confirmed 9 days ago
Retailer 9
-
£628 GBP
$842 USD
View
Price last confirmed 10 days ago
Retailer 10
-
£664 GBP
$890 USD
View
Price last confirmed 9 days ago
Retailer 11
-
£697 GBP
$934 USD
View
Price last confirmed 82 days ago
Retailer 12
-
£860 GBP
View
Price last confirmed 10 days ago
B
Retailer 13
-
£993 GBP
$1,330 USD
View
Most Expensive
Michael Trio
1931269160 · Oct 21
£1,028 GBP
SGD 1,862 SGD
View
Price last confirmed 10 days ago
13 more retailers have this diamond
Prices start from £342 GBPSave up to £651 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
1.27ct Marquise
£342 GBP