Marquise|Lab Grown|IGI

1.02ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG831617383

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831617383

Diamond specifications and retailer prices

From £143 GBP
$191 USD
As of October 24, 2026
Save £957 GBP (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,099 GBP at Queensmith · As of October 25, 2026
View at Queensmith

About this 1.02ct lab-grown marquise diamond

This 1.02ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831617383 or 831617383. Listed at 18 retailers as of October 24, 2026, with prices from £143 to £1,099, a £957 spread on the same certified stone. Queensmith lists it at £1,099. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.02
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.2°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831617383
Dimensions11.42 × 5.16 × 3.11 mm
L/W Ratio2.21
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.42 mm5.16 mm1.02 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG831617383
Side View
Table 55.0%Crown 33.2°Girdle: THN-MEDPavilion 38°Culet: NoneDepth 60.3%

Caratlytics Score

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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 24
Current: £1,099 GBP|Low: £123 GBP|High: £27,978 GBP|Avg: £811 GBP
Queensmith
Retailer 2
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Retailer 18
October 26, 2026
Retailer 3£123 GBP
Retailer 17£143 GBP
Retailer 12£191 GBP
Retailer 8£249 GBP
Retailer 14£256 GBP
Retailer 15£258 GBP
Retailer 11£262 GBP
Retailer 2£275 GBP
Retailer 5£298 GBP
Retailer 13£328 GBP
Retailer 6£334 GBP
Retailer 18£490 GBP
Retailer 4£518 GBP
Retailer 9£532 GBP
Retailer 7£545 GBP
Retailer 16£718 GBP
Retailer 10£807 GBP
Queensmith£1,099 GBP

21 data points across 18 retailers

18 retailers£143 GBP to £1,099 GBP

Retailer 1
-
£123 GBP
$165 USD
Price last confirmed 7 days ago
A
Retailer 2
-
£143 GBP
$191 USD
View
A
Retailer 3
-
£191 GBP
View
A
Retailer 4
-
£249 GBP
$334 USD
View
A
Retailer 5
-
£256 GBP
€327 EUR
View
Retailer 6
-
£258 GBP
ZAR 5,586 ZAR
View
Price last confirmed 7 days ago
A
Retailer 7
-
£262 GBP
View
B+
Retailer 8
-
£275 GBP
$368 USD
View
A
Retailer 9
-
£298 GBP
$399 USD
View
B+
Retailer 10
-
£328 GBP
View
B+
Retailer 11
-
£334 GBP
$447 USD
View
B
Retailer 12
-
£490 GBP
$657 USD
View
B
Retailer 13
-
£518 GBP
$694 USD
View
B
Retailer 14
-
£532 GBP
$712 USD
View
B
Retailer 15
-
£545 GBP
$730 USD
View
Retailer 16
-
£718 GBP
View
Price last confirmed 9 days ago
B
Retailer 17
-
£807 GBP
$1,082 USD
View
Most Expensive
B
Queensmith
LG831617383 · Oct 25
£1,099 GBP
View
17 more retailers have this diamond
Prices start from £143 GBPSave up to £957 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
1.02ct Marquise
£143 GBP