Marquise|Lab Grown|IGI

1.05ct D VS2 Marquise Lab Grown Diamond

VG • D/VS2 • IGI LG831690520

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831690520

Diamond specifications and retailer prices

From £163 GBP
$219 USD
As of October 30, 2026
Save £784 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £947 GBP at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.05ct lab-grown marquise diamond

This 1.05ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG831690520 or 831690520. Listed at 15 retailers as of October 30, 2026, with prices from £163 to £947, a £784 spread on the same certified stone. Helzberg Diamonds lists it at £947. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.05
Carat
D
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831690520
Dimensions10.09 × 5.40 × 3.38 mm
L/W Ratio1.87
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.09 mm5.40 mm1.05 ctD / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831690520
Side View
Table 61.0%Crown 33.9°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £947 GBP|Low: £163 GBP|High: £947 GBP|Avg: £435 GBP
Helzberg Diamonds
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
November 1, 2026
Retailer 15£163 GBP
Retailer 6£183 GBP
Retailer 5£202 GBP
Retailer 8£242 GBP
Retailer 4£275 GBP
Retailer 14£346 GBP
Retailer 9£376 GBP
Retailer 12£378 GBP
Retailer 7£546 GBP
Retailer 13£649 GBP
Retailer 10£651 GBP
Retailer 11£653 GBP
Retailer 3£694 GBP
Retailer 2£811 GBP
Helzberg Diamonds£947 GBP

4 data points across 15 retailers

15 retailers£163 GBP to £947 GBP

A
Cheapest Retailer
-
£163 GBP
$219 USD
A
Retailer 2
-
£183 GBP
$245 USD
View
Final sale: no returns
A
Retailer 3
-
£202 GBP
$271 USD
View
A
Retailer 4
-
£242 GBP
View
A
Retailer 5
-
£275 GBP
$368 USD
View
B+
Retailer 6
-
£346 GBP
$464 USD
View
B+
Retailer 7
-
£376 GBP
View
B+
Retailer 8
-
£378 GBP
$507 USD
View
B
Retailer 9
-
£546 GBP
SGD 989 SGD
View
B
Retailer 10
-
£649 GBP
$870 USD
View
B
Retailer 11
-
£651 GBP
$872 USD
View
B
Retailer 12
-
£653 GBP
$875 USD
View
B
Retailer 13
-
£694 GBP
$930 USD
View
B
Retailer 14
-
£811 GBP
View
Most Expensive
B
Helzberg Diamonds
ZXZOJHMPGLIG · Nov 1
£947 GBP
$1,269 USD
View
14 more retailers have this diamond
Prices start from £163 GBPSave up to £784 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
1.05ct Marquise
£163 GBP