Marquise|Lab Grown|IGI

1.30ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG841676576

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841676576

Diamond specifications and retailer prices

From £187 GBP
$250 USD
As of October 30, 2026
Save £542 GBP (74%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £828 GBP at Rare Carat · As of October 7, 2026
View at Rare Carat

About this 1.3ct lab-grown marquise diamond

This 1.3ct 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 LG841676576 or 841676576. Listed at 4 retailers as of October 29, 2026, with a 291% 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

1.30
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841676576
Dimensions11.31 × 5.62 × 3.60 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.31 mm5.62 mm1.30 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841676576
Side View
Table 56.0%Crown 34.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 64.1%

Caratlytics Score

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

Last verified: Oct 30
Current: £828 GBP|Low: £187 GBP|High: £828 GBP|Avg: £526 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 2£187 GBP
Retailer 4£281 GBP
Retailer 5£417 GBP
Retailer 3£729 GBP
Rare Carat£828 GBP

6 data points across 5 retailers

4 retailers£187 GBP to £729 GBP

A
Cheapest Retailer
-
£187 GBP
$250 USD
Final sale: no returns
B+
Retailer 2
-
£281 GBP
$377 USD
View
B
Retailer 3
-
£729 GBP
$976 USD
View
Most Expensive
Rare Carat
841676576 · Oct 7
£828 GBP
$1,110 USD
View
Price last confirmed 23 days ago
3 more retailers have this diamond
Prices start from £187 GBPSave up to £542 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
1.30ct Marquise
£187 GBP