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Marquise|Lab Grown|IGI

1.05ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG799631335

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799631335

Diamond specifications and retailer prices

From £236 GBP
As of November 5, 2026
Save £1,239 GBP (84%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £1,474 GBP at Brilliant Earth · As of November 3, 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 LG799631335 or 799631335. Listed at 26 retailers as of November 3, 2026, with prices from £236 to £1,474, a £1,239 spread on the same certified stone. Brilliant Earth lists it at £1,474. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799631335
Dimensions10.60 × 5.37 × 3.28 mm
L/W Ratio1.97
Girdle conditionFaceted
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
10.60 mm5.37 mm1.05 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799631335
Side View
Table 59.0%Crown 32.7°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
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 5
Current: £1,474 GBP|Low: £211 GBP|High: £1,889 GBP|Avg: £645 GBP|-22.0%
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
Retailer 14
Retailer 15
November 5, 2026
Retailer 5£211 GBP
Retailer 4£261 GBP
Retailer 9£268 GBP
Retailer 7£352 GBP
Retailer 13£378 GBP
Retailer 14£429 GBP
Retailer 12£450 GBP
Retailer 2£456 GBP
Retailer 15£480 GBP
Retailer 10£641 GBP
Retailer 11£677 GBP
Retailer 3£948 GBP
Retailer 8£1,044 GBP
Retailer 6£1,096 GBP
Brilliant Earth£1,474 GBP

34 data points across 15 retailers

26 retailers£236 GBP to £1,474 GBP

Retailer 1
-
£211 GBP
Price last confirmed 28 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 11 days ago
Retailer 5
-
£261 GBP
View
Price last confirmed 33 days ago
A
Retailer 6
-
£268 GBP
View
A
Retailer 7
-
£352 GBP
View
A
Retailer 8
-
£378 GBP
View
A
Retailer 9
-
£429 GBP
View
A
Retailer 10
-
£441 GBP
View
A
Retailer 11
-
£450 GBP
View
A
Retailer 12
-
£456 GBP
View
A
Retailer 13
-
£456 GBP
View
B+
Retailer 14
-
£480 GBP
View
B+
Retailer 15
-
£641 GBP
View
B+
Retailer 16
-
£677 GBP
View
B+
Retailer 17
-
£699 GBP
View
B+
Retailer 18
-
£803 GBP
View
Retailer 19
-
£840 GBP
View
Price last confirmed 36 days ago
B
Retailer 20
-
£877 GBP
View
Retailer 21
-
£948 GBP
View
Price last confirmed 8 days ago
B
Retailer 22
-
£1,016 GBP
View
B+
Retailer 23
-
£1,044 GBP
View
B
Retailer 24
-
£1,084 GBP
View
Retailer 25
-
£1,096 GBP
View
Price last confirmed 28 days ago
Most Expensive
B
Brilliant Earth
20485595A · Nov 3
£1,474 GBP
$1,990 USD
View
25 more retailers have this diamond
Prices start from £236 GBPSave up to £1,239 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