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Marquise|Lab Grown|IGI

1.05ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG625439413

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG625439413

Diamond specifications and retailer prices

From £236 GBP
As of November 5, 2026
Save £1,639 GBP (87%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £1,874 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG625439413 or 625439413. Listed at 28 retailers as of November 4, 2026, with prices from £236 to £1,874, a £1,639 spread on the same certified stone. Brilliant Earth lists it at £1,874. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625439413
Dimensions10.69 × 5.40 × 3.27 mm
L/W Ratio1.98
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.69 mm5.40 mm1.05 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625439413
Side View
Table 60.0%Crown 34.2°Girdle: THN-MEDPavilion 40.1°Culet: NoneDepth 60.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £1,874 GBP|Low: £210 GBP|High: £1,874 GBP|Avg: £723 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 5£210 GBP
Retailer 6£296 GBP
Retailer 3£348 GBP
Retailer 8£378 GBP
Retailer 10£496 GBP
Retailer 2£507 GBP
Retailer 7£707 GBP
Retailer 4£801 GBP
Retailer 9£925 GBP
Retailer 13£937 GBP
Retailer 12£1,117 GBP
Retailer 11£1,153 GBP
Brilliant Earth£1,874 GBP

33 data points across 13 retailers

28 retailers£236 GBP to £1,874 GBP

Retailer 1
-
£210 GBP
Price last confirmed 19 days ago
A
Retailer 2
-
£236 GBP
View
Final sale: no returns
Retailer 3
-
£244 GBP
View
Price last confirmed 21 days ago
Retailer 4
-
£261 GBP
View
Price last confirmed 33 days ago
Retailer 5
-
£261 GBP
View
Price last confirmed 20 days ago
A
Retailer 6
-
£296 GBP
View
A
Retailer 7
-
£348 GBP
View
A
Retailer 8
-
£353 GBP
View
A
Retailer 9
-
£378 GBP
View
B+
Retailer 10
-
£496 GBP
View
B+
Retailer 11
-
£496 GBP
View
B+
Retailer 12
-
£507 GBP
View
B+
Retailer 13
-
£616 GBP
View
B+
Retailer 14
-
£707 GBP
View
B+
Retailer 15
-
£801 GBP
View
B
Retailer 16
-
£925 GBP
View
Retailer 17
-
£925 GBP
View
Price last confirmed 20 days ago
Retailer 18
-
£937 GBP
View
Price last confirmed 8 days ago
Retailer 19
-
£956 GBP
View
Price last confirmed 8 days ago
Retailer 20
-
£956 GBP
View
Price last confirmed 8 days ago
Retailer 21
-
£956 GBP
View
Price last confirmed 8 days ago
B
Retailer 22
-
£1,044 GBP
View
B
Retailer 23
-
£1,045 GBP
View
B
Retailer 24
-
£1,079 GBP
View
B
Retailer 25
-
£1,117 GBP
View
B
Retailer 26
-
£1,153 GBP
View
B
Retailer 27
-
£1,867 GBP
View
Most Expensive
B
Brilliant Earth
18396597Y · Nov 4
£1,874 GBP
$2,530 USD
View
27 more retailers have this diamond
Prices start from £236 GBPSave up to £1,639 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
£236 GBP