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Marquise|Lab Grown|IGI

1.55ct D VS1 Marquise Lab Grown Diamond

EX • D/VS1 • IGI LG792643914

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG792643914

Diamond specifications and retailer prices

From £252 GBP
$337 USD
As of November 1, 2026
Save £1,379 GBP (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,630 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG792643914 or 792643914. Listed at 18 retailers as of October 27, 2026, with prices from £252 to £1,630, a £1,379 spread on the same certified stone. Queensmith lists it at £1,630. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792643914
Dimensions11.94 × 6.12 × 3.78 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.94 mm6.12 mm1.55 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792643914
Side View
Table 60.0%Crown 33.4°Girdle: THN-MEDPavilion 40.5°Culet: NoneDepth 61.8%

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: Nov 1
Current: £496 GBP|Low: £216 GBP|High: £1,649 GBP|Avg: £589 GBP|+3.2%
Retailer 1
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
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 17£216 GBP
Retailer 7£252 GBP
Retailer 4£261 GBP
Retailer 5£279 GBP
Retailer 16£279 GBP
Retailer 15£422 GBP
Retailer 8£425 GBP
Retailer 3£456 GBP
Retailer 10£482 GBP
Retailer 1£496 GBP
Retailer 6£530 GBP
Retailer 12£651 GBP
Retailer 14£858 GBP
Retailer 9£933 GBP
Retailer 2£1,074 GBP
Retailer 11£1,119 GBP
Retailer 13£1,567 GBP

44 data points across 17 retailers

18 retailers£252 GBP to £1,630 GBP

Retailer 1
-
£216 GBP
$290 USD
Price last confirmed 31 days ago
A
Retailer 2
-
£252 GBP
$337 USD
View
Final sale: no returns
Retailer 3
-
£261 GBP
$350 USD
View
Price last confirmed 34 days ago
Retailer 4
-
£279 GBP
$374 USD
View
Price last confirmed 30 days ago
A
Retailer 5
-
£422 GBP
$565 USD
View
A
Retailer 6
-
£425 GBP
$570 USD
View
A
Retailer 7
-
£456 GBP
$611 USD
View
A
Retailer 8
-
£482 GBP
ZAR 10,424 ZAR
View
A
Retailer 9
-
£496 GBP
View
B+
Retailer 10
-
£530 GBP
$710 USD
View
B+
Retailer 11
-
£651 GBP
A$1,342 AUD
View
B
Retailer 12
-
£858 GBP
$1,150 USD
View
Retailer 13
-
£898 GBP
$1,203 USD
View
Price last confirmed 32 days ago
B
Retailer 14
-
£933 GBP
$1,250 USD
View
B
Retailer 15
-
£1,074 GBP
$1,439 USD
View
B
Retailer 16
-
£1,119 GBP
View
Retailer 17
-
£1,567 GBP
$2,100 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Queensmith
LG792643914 · Oct 27
£1,630 GBP
View
17 more retailers have this diamond
Prices start from £252 GBPSave up to £1,379 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
1.55ct Marquise
£252 GBP