Marquise|Lab Grown|IGI

1.03ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG816606879

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816606879

Diamond specifications and retailer prices

From £127 GBP
$169 USD
As of October 27, 2026
Save £807 GBP (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £934 GBP at Helzberg Diamonds · As of October 26, 2026
View at Helzberg Diamonds

About this 1.03ct lab-grown marquise diamond

This 1.03ct 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 LG816606879 or 816606879. Listed at 22 retailers as of October 26, 2026, with prices from £127 to £934, a £807 spread on the same certified stone. Helzberg Diamonds lists it at £934. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816606879
Dimensions11.01 × 5.12 × 3.21 mm
L/W Ratio2.15
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.01 mm5.12 mm1.03 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816606879
Side View
Table 59.0%Crown 33.3°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 62.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: £934 GBP|Low: £127 GBP|High: £934 GBP|Avg: £386 GBP
Helzberg Diamonds
Retailer 2
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Retailer 22
October 27, 2026
Retailer 22£127 GBP
Retailer 9£143 GBP
Retailer 12£147 GBP
Retailer 8£158 GBP
Retailer 10£158 GBP
Retailer 21£199 GBP
Retailer 20£248 GBP
Retailer 2£271 GBP
Retailer 16£279 GBP
Retailer 13£281 GBP
Retailer 6£283 GBP
Retailer 4£339 GBP
Retailer 17£384 GBP
Retailer 15£472 GBP
Retailer 3£507 GBP
Retailer 5£535 GBP
Retailer 14£544 GBP
Retailer 11£548 GBP
Retailer 19£586 GBP
Retailer 18£738 GBP
Retailer 7£823 GBP
Helzberg Diamonds£934 GBP

21 data points across 22 retailers

22 retailers£127 GBP to £934 GBP

A
Cheapest Retailer
-
£127 GBP
$169 USD
A
Retailer 2
-
£143 GBP
$190 USD
View
Final sale: no returns
A
Retailer 3
-
£147 GBP
$196 USD
View
A
Retailer 4
-
£158 GBP
$210 USD
View
A
Retailer 5
-
£158 GBP
$210 USD
View
Retailer 6
-
£199 GBP
View
Price last confirmed 13 days ago
A
Retailer 7
-
£248 GBP
$330 USD
View
A
Retailer 8
-
£271 GBP
ZAR 5,826 ZAR
View
A
Retailer 9
-
£279 GBP
View
A
Retailer 10
-
£281 GBP
€357 EUR
View
A
Retailer 11
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£283 GBP
$377 USD
View
B+
Retailer 12
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£339 GBP
$452 USD
View
B+
Retailer 13
-
£384 GBP
A$787 AUD
View
B+
Retailer 14
-
£472 GBP
A$968 AUD
View
B+
Retailer 15
-
£507 GBP
$675 USD
View
B
Retailer 16
-
£535 GBP
$713 USD
View
B
Retailer 17
-
£544 GBP
$725 USD
View
B
Retailer 18
-
£548 GBP
$730 USD
View
B
Retailer 19
-
£586 GBP
$780 USD
View
B
Retailer 20
-
£738 GBP
View
B
Retailer 21
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£823 GBP
$1,096 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOHMMGMONP · Oct 26
£934 GBP
$1,244 USD
View
21 more retailers have this diamond
Prices start from £127 GBPSave up to £807 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
1.03ct Marquise
£127 GBP