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Marquise|Lab Grown|IGI

1.02ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG828664428

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG828664428

Diamond specifications and retailer prices

From £207 GBP
As of November 5, 2026
Save £1,075 GBP (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,281 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.02ct lab-grown marquise diamond

This 1.02ct 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 LG828664428 or 828664428. Listed at 18 retailers as of November 3, 2026, with prices from £207 to £1,281, a £1,075 spread on the same certified stone. Brilliant Earth lists it at £1,281. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.02
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828664428
Dimensions10.26 × 5.20 × 3.25 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
10.26 mm5.20 mm1.02 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828664428
Side View
Table 59.0%Crown 36.9°Girdle: MED-STKPavilion 39°Culet: NoneDepth 62.5%

Caratlytics Score

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A+
Exceptional
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: £1,281 GBP|Low: £207 GBP|High: £1,356 GBP|Avg: £524 GBP|-5.5%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 5, 2026
Retailer 17£207 GBP
Retailer 8£213 GBP
Retailer 7£245 GBP
Retailer 16£256 GBP
Retailer 6£261 GBP
Retailer 12£348 GBP
Retailer 11£384 GBP
Retailer 4£386 GBP
Retailer 15£396 GBP
Retailer 2£433 GBP
Retailer 13£562 GBP
Retailer 3£617 GBP
Retailer 14£705 GBP
Retailer 9£853 GBP
Retailer 10£917 GBP
Retailer 5£1,016 GBP
Brilliant Earth£1,281 GBP

25 data points across 17 retailers

18 retailers£207 GBP to £1,281 GBP

A+
Cheapest Retailer
-
£207 GBP
Final sale: no returns
Retailer 2
-
£213 GBP
View
Price last confirmed 23 days ago
Retailer 3
-
£245 GBP
View
Price last confirmed 21 days ago
A
Retailer 4
-
£256 GBP
View
Retailer 5
-
£261 GBP
View
Price last confirmed 21 days ago
Retailer 6
-
£265 GBP
View
Price last confirmed 24 days ago
A
Retailer 7
-
£348 GBP
View
A
Retailer 8
-
£384 GBP
View
A
Retailer 9
-
£386 GBP
View
A
Retailer 10
-
£396 GBP
View
A
Retailer 11
-
£433 GBP
View
B+
Retailer 12
-
£562 GBP
View
B+
Retailer 13
-
£617 GBP
View
B+
Retailer 14
-
£705 GBP
View
Retailer 15
-
£853 GBP
View
Price last confirmed 23 days ago
B+
Retailer 16
-
£917 GBP
View
Retailer 17
-
£1,016 GBP
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
21062199A · Nov 3
£1,281 GBP
$1,730 USD
View
17 more retailers have this diamond
Prices start from £207 GBPSave up to £1,075 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
£207 GBP