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Marquise|Lab Grown|IGI

1.02ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG802606786

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG802606786

Diamond specifications and retailer prices

From £170 GBP
As of November 5, 2026
Save £1,289 GBP (88%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £1,837 GBP at Brilliant Earth · As of October 24, 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 LG802606786 or 802606786. Listed at 26 retailers as of November 4, 2026, with a 757% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG802606786
Dimensions10.39 × 5.39 × 3.32 mm
L/W Ratio1.93
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
10.39 mm5.39 mm1.02 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG802606786
Side View
Table 60.0%Crown 33.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.6%

Caratlytics Score

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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: £1,037 GBP|Low: £168 GBP|High: £1,837 GBP|Avg: £541 GBP|-43.5%
Brilliant Earth
Retailer 2
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Retailer 24
November 5, 2026
Retailer 16£168 GBP
Retailer 7£170 GBP
Retailer 14£177 GBP
Retailer 5£189 GBP
Retailer 10£189 GBP
Retailer 13£214 GBP
Retailer 22£267 GBP
Retailer 6£284 GBP
Retailer 4£324 GBP
Retailer 19£360 GBP
Retailer 23£364 GBP
Retailer 2£385 GBP
Retailer 9£397 GBP
Retailer 18£510 GBP
Retailer 24£610 GBP
Retailer 8£670 GBP
Retailer 12£689 GBP
Retailer 17£709 GBP
Retailer 15£813 GBP
Retailer 20£836 GBP
Retailer 11£898 GBP
Retailer 21£911 GBP
Brilliant Earth£1,037 GBP
Retailer 3£1,459 GBP

33 data points across 24 retailers

26 retailers£170 GBP to £1,459 GBP

Retailer 1
-
£168 GBP
Price last confirmed 15 days ago
A
Retailer 2
-
£170 GBP
View
Final sale: no returns
A
Retailer 3
-
£177 GBP
View
Retailer 4
-
£189 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£189 GBP
View
A
Retailer 6
-
£214 GBP
View
A
Retailer 7
-
£267 GBP
View
A
Retailer 8
-
£284 GBP
View
A
Retailer 9
-
£324 GBP
View
A
Retailer 10
-
£360 GBP
View
A
Retailer 11
-
£364 GBP
View
A
Retailer 12
-
£385 GBP
View
Retailer 13
-
£397 GBP
View
Price last confirmed 11 days ago
B+
Retailer 14
-
£510 GBP
View
B+
Retailer 15
-
£610 GBP
View
B+
Retailer 16
-
£670 GBP
View
B+
Retailer 17
-
£689 GBP
View
B+
Retailer 18
-
£709 GBP
View
Retailer 19
-
£813 GBP
View
Price last confirmed 15 days ago
B+
Retailer 20
-
£836 GBP
View
B+
Retailer 21
-
£898 GBP
View
Retailer 22
-
£911 GBP
View
Price last confirmed 8 days ago
B+
Retailer 23
-
£1,037 GBP
View
Retailer 24
-
£1,458 GBP
View
Price last confirmed 9 days ago
B
Retailer 25
-
£1,459 GBP
View
Most Expensive
Brilliant Earth
19747659A · Oct 24
£1,837 GBP
$2,480 USD
View
Price last confirmed 11 days ago
25 more retailers have this diamond
Prices start from £170 GBPSave up to £1,289 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
£170 GBP