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Marquise|Lab Grown|IGI

0.65ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG821659891

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG821659891

Diamond specifications and retailer prices

From £281 GBP
As of November 4, 2026
Save £1,312 GBP (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,593 GBP at Riddles Jewelry · As of November 4, 2026
View at Riddles Jewelry

About this 0.65ct lab-grown marquise diamond

This 0.65ct lab-grown marquise sits in the half to three-quarter carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821659891 or 821659891. Listed at 19 retailers as of November 4, 2026, with prices from £281 to £1,593, a £1,312 spread on the same certified stone. Riddles Jewelry lists it at £1,593. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.65
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821659891
Dimensions9.43 × 4.44 × 2.73 mm
L/W Ratio2.12
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.43 mm4.44 mm0.65 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821659891
Side View
Table 61.0%Crown 34.4°Girdle: THN-MEDPavilion 41.4°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £624 GBP|Low: £270 GBP|High: £1,378 GBP|Avg: £662 GBP|+2.2%
Retailer 1
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
November 5, 2026
Retailer 11£281 GBP
Retailer 2£315 GBP
Retailer 3£348 GBP
Retailer 13£348 GBP
Retailer 4£352 GBP
Retailer 9£536 GBP
Retailer 12£556 GBP
Retailer 10£575 GBP
Retailer 1£624 GBP
Retailer 8£632 GBP
Retailer 5£759 GBP
Retailer 14£1,120 GBP
Retailer 6£1,309 GBP
Retailer 7£1,357 GBP

44 data points across 14 retailers

19 retailers£281 GBP to £1,593 GBP

A
Cheapest Retailer
-
£281 GBP
A
Retailer 2
-
£315 GBP
View
Retailer 3
-
£348 GBP
View
Price last confirmed 11 days ago
A
Retailer 4
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£348 GBP
View
A
Retailer 5
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£352 GBP
View
Final sale: no returns
A
Retailer 6
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£369 GBP
View
Retailer 7
-
£536 GBP
View
Price last confirmed 9 days ago
B+
Retailer 8
-
£556 GBP
View
B+
Retailer 9
-
£575 GBP
View
B+
Retailer 10
-
£624 GBP
View
B+
Retailer 11
-
£632 GBP
View
B
Retailer 12
-
£759 GBP
View
B
Retailer 13
-
£1,120 GBP
View
B
Retailer 14
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£1,149 GBP
View
B
Retailer 15
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£1,149 GBP
View
B
Retailer 16
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£1,273 GBP
View
B
Retailer 17
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£1,309 GBP
View
B
Retailer 18
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£1,357 GBP
View
Most Expensive
B
Riddles Jewelry
1967136703 · Nov 4
£1,593 GBP
$2,144 USD
View
18 more retailers have this diamond
Prices start from £281 GBPSave up to £1,312 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
0.65ct Marquise
£281 GBP