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Marquise|Lab Grown|IGI

0.63ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG803617330

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG803617330

Diamond specifications and retailer prices

From £273 GBP
As of November 4, 2026
Save £1,271 GBP (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,544 GBP at Riddles Jewelry · As of November 4, 2026
View at Riddles Jewelry

About this 0.63ct lab-grown marquise diamond

This 0.63ct 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 LG803617330 or 803617330. Listed at 21 retailers as of November 4, 2026, with prices from £273 to £1,544, a £1,271 spread on the same certified stone. Riddles Jewelry lists it at £1,544. 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

0.63
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803617330
Dimensions8.93 × 4.40 × 2.74 mm
L/W Ratio2.03
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
8.93 mm4.40 mm0.63 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803617330
Side View
Table 59.0%Crown 33.4°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 62.3%

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: £306 GBP|Low: £262 GBP|High: £1,339 GBP|Avg: £576 GBP|-10.2%
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 14£273 GBP
Retailer 1£306 GBP
Retailer 4£317 GBP
Retailer 2£339 GBP
Retailer 5£339 GBP
Retailer 6£470 GBP
Retailer 11£522 GBP
Retailer 13£539 GBP
Retailer 12£557 GBP
Retailer 7£605 GBP
Retailer 9£614 GBP
Retailer 10£706 GBP
Retailer 3£1,088 GBP
Retailer 8£1,319 GBP

46 data points across 14 retailers

21 retailers£273 GBP to £1,544 GBP

A
Cheapest Retailer
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£273 GBP
A
Retailer 2
-
£306 GBP
View
Final sale: no returns
A
Retailer 3
-
£317 GBP
View
Retailer 4
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£339 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
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£339 GBP
View
A
Retailer 6
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£358 GBP
View
B+
Retailer 7
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£470 GBP
View
Retailer 8
-
£522 GBP
View
Price last confirmed 9 days ago
B+
Retailer 9
-
£539 GBP
View
B+
Retailer 10
-
£557 GBP
View
B+
Retailer 11
-
£605 GBP
View
B+
Retailer 12
-
£614 GBP
View
B+
Retailer 13
-
£706 GBP
View
B
Retailer 14
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£735 GBP
View
B
Retailer 15
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£1,088 GBP
View
B
Retailer 16
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£1,112 GBP
View
B
Retailer 17
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£1,117 GBP
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B
Retailer 18
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£1,233 GBP
View
B
Retailer 19
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£1,284 GBP
View
B
Retailer 20
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£1,319 GBP
View
Most Expensive
B
Riddles Jewelry
1966216340 · Nov 4
£1,544 GBP
$2,078 USD
View
20 more retailers have this diamond
Prices start from £273 GBPSave up to £1,271 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
0.63ct Marquise
£273 GBP