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Marquise|Lab Grown|IGI

0.73ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG797645760

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG797645760

Diamond specifications and retailer prices

From £319 GBP
As of November 4, 2026
Save £1,508 GBP (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,827 GBP at Riddles Jewelry · As of November 4, 2026
View at Riddles Jewelry

About this 0.73ct lab-grown marquise diamond

This 0.73ct 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 LG797645760 or 797645760. Listed at 22 retailers as of November 4, 2026, with prices from £319 to £1,827, a £1,508 spread on the same certified stone. Riddles Jewelry lists it at £1,827. 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

0.73
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797645760
Dimensions9.05 × 4.66 × 2.97 mm
L/W Ratio1.94
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
9.05 mm4.66 mm0.73 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797645760
Side View
Table 60.0%Crown 35.2°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.7%

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: £358 GBP|Low: £307 GBP|High: £1,473 GBP|Avg: £666 GBP|-11.4%
Retailer 1
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Retailer 4
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Retailer 9
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Retailer 11
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Retailer 14
November 5, 2026
Retailer 13£319 GBP
Retailer 1£358 GBP
Retailer 4£358 GBP
Retailer 2£396 GBP
Retailer 5£396 GBP
Retailer 6£528 GBP
Retailer 10£603 GBP
Retailer 14£632 GBP
Retailer 12£634 GBP
Retailer 7£647 GBP
Retailer 9£719 GBP
Retailer 11£921 GBP
Retailer 3£1,274 GBP
Retailer 8£1,452 GBP

46 data points across 14 retailers

22 retailers£319 GBP to £1,827 GBP

A
Cheapest Retailer
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£319 GBP
A
Retailer 2
-
£358 GBP
View
Final sale: no returns
A
Retailer 3
-
£358 GBP
View
Retailer 4
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£396 GBP
View
Price last confirmed 11 days ago
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Retailer 5
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£396 GBP
View
A
Retailer 6
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£397 GBP
View
A
Retailer 7
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£415 GBP
View
B+
Retailer 8
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£528 GBP
View
Retailer 9
-
£603 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
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£632 GBP
View
B+
Retailer 11
-
£634 GBP
View
B+
Retailer 12
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£647 GBP
View
B+
Retailer 13
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£719 GBP
View
B
Retailer 14
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£871 GBP
View
B+
Retailer 15
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£921 GBP
View
B
Retailer 16
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£1,274 GBP
View
B
Retailer 17
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£1,298 GBP
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B
Retailer 18
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£1,317 GBP
View
B
Retailer 19
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£1,432 GBP
View
B
Retailer 20
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£1,452 GBP
View
B
Retailer 21
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£1,461 GBP
View
Most Expensive
B
Riddles Jewelry
1966211219 · Nov 4
£1,827 GBP
$2,459 USD
View
21 more retailers have this diamond
Prices start from £319 GBPSave up to £1,508 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
0.73ct Marquise
£319 GBP