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Marquise|Lab Grown|IGI

1.54ct G VVS2 Marquise Lab Grown Diamond

EX • G/VVS2 • IGI LG778660435

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG778660435

Diamond specifications and retailer prices

From £186 GBP
As of November 4, 2026
Save £1,170 GBP (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,356 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.54ct lab-grown marquise diamond

This 1.54ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG778660435 or 778660435. Listed at 21 retailers as of November 4, 2026, with prices from £186 to £1,356, a £1,170 spread on the same certified stone. Brilliant Earth lists it at £1,356. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
G
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778660435
Dimensions11.98 × 5.93 × 3.69 mm
L/W Ratio2.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.98 mm5.93 mm1.54 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778660435
Side View
Table 60.0%Crown 35°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 62.2%

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: Nov 4
Current: £1,356 GBP|Low: £186 GBP|High: £1,356 GBP|Avg: £565 GBP
Brilliant Earth
Retailer 2
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November 5, 2026
Retailer 8£186 GBP
Retailer 7£207 GBP
Retailer 18£216 GBP
Retailer 12£231 GBP
Retailer 14£232 GBP
Retailer 3£348 GBP
Retailer 6£387 GBP
Retailer 4£395 GBP
Retailer 17£398 GBP
Retailer 2£435 GBP
Retailer 5£482 GBP
Retailer 13£540 GBP
Retailer 16£593 GBP
Retailer 20£741 GBP
Retailer 9£744 GBP
Retailer 19£748 GBP
Retailer 11£779 GBP
Retailer 21£908 GBP
Retailer 15£924 GBP
Retailer 10£959 GBP
Brilliant Earth£1,356 GBP

29 data points across 21 retailers

21 retailers£186 GBP to £1,356 GBP

A
Cheapest Retailer
-
£186 GBP
A
Retailer 2
-
£207 GBP
View
Final sale: no returns
A
Retailer 3
-
£216 GBP
View
A
Retailer 4
-
£231 GBP
View
Retailer 5
-
£232 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
-
£348 GBP
View
A
Retailer 7
-
£387 GBP
View
A
Retailer 8
-
£395 GBP
View
A
Retailer 9
-
£398 GBP
View
A
Retailer 10
-
£435 GBP
View
A
Retailer 11
-
£482 GBP
View
B+
Retailer 12
-
£540 GBP
View
B+
Retailer 13
-
£593 GBP
View
B+
Retailer 14
-
£741 GBP
View
B+
Retailer 15
-
£744 GBP
View
B+
Retailer 16
-
£748 GBP
View
B+
Retailer 17
-
£779 GBP
View
B
Retailer 18
-
£908 GBP
View
B
Retailer 19
-
£924 GBP
View
B
Retailer 20
-
£959 GBP
View
Most Expensive
B
Brilliant Earth
21501651A · Nov 4
£1,356 GBP
$1,830 USD
View
20 more retailers have this diamond
Prices start from £186 GBPSave up to £1,170 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
1.54ct Marquise
£186 GBP