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Marquise|Lab Grown|IGI

0.86ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG803665280

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG803665280

Diamond specifications and retailer prices

From £348 GBP
As of November 4, 2026
Save £1,656 GBP (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £2,005 GBP at Riddles Jewelry · As of November 4, 2026
View at Riddles Jewelry

About this 0.86ct lab-grown marquise diamond

This 0.86ct lab-grown marquise sits in the just-under-one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG803665280 or 803665280. Listed at 22 retailers as of November 4, 2026, with prices from £348 to £2,005, a £1,656 spread on the same certified stone. Riddles Jewelry lists it at £2,005. 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

0.86
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803665280
Dimensions9.30 × 5.04 × 3.18 mm
L/W Ratio1.85
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
9.30 mm5.04 mm0.86 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803665280
Side View
Table 58.0%Crown 32.3°Girdle: MED-THKPavilion 40.7°Culet: NoneDepth 63.1%

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 4
Current: £390 GBP|Low: £335 GBP|High: £1,608 GBP|Avg: £727 GBP|-11.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 14
November 5, 2026
Retailer 13£348 GBP
Retailer 1£390 GBP
Retailer 4£391 GBP
Retailer 2£432 GBP
Retailer 5£432 GBP
Retailer 6£569 GBP
Retailer 10£630 GBP
Retailer 14£689 GBP
Retailer 12£695 GBP
Retailer 7£706 GBP
Retailer 9£785 GBP
Retailer 11£1,048 GBP
Retailer 3£1,390 GBP
Retailer 8£1,584 GBP

45 data points across 14 retailers

22 retailers£348 GBP to £2,005 GBP

A
Cheapest Retailer
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£348 GBP
A
Retailer 2
-
£390 GBP
View
Final sale: no returns
A
Retailer 3
-
£391 GBP
View
Retailer 4
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£432 GBP
View
Price last confirmed 20 days ago
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Retailer 5
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£432 GBP
View
A
Retailer 6
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£467 GBP
View
A
Retailer 7
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£477 GBP
View
B+
Retailer 8
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£569 GBP
View
Retailer 9
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£630 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
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£689 GBP
View
B+
Retailer 11
-
£695 GBP
View
B+
Retailer 12
-
£706 GBP
View
B+
Retailer 13
-
£785 GBP
View
B
Retailer 14
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£955 GBP
View
B+
Retailer 15
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£1,048 GBP
View
B
Retailer 16
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£1,390 GBP
View
B
Retailer 17
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£1,412 GBP
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B
Retailer 18
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£1,445 GBP
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B
Retailer 19
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£1,525 GBP
View
B
Retailer 20
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£1,584 GBP
View
B
Retailer 21
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£1,603 GBP
View
Most Expensive
B
Riddles Jewelry
1966207886 · Nov 4
£2,005 GBP
$2,698 USD
View
21 more retailers have this diamond
Prices start from £348 GBPSave up to £1,656 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
0.86ct Marquise
£348 GBP