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Marquise|Lab Grown|IGI

0.73ct D IF Marquise Lab Grown Diamond

VG • D/IF • IGI LG816662424

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816662424

Diamond specifications and retailer prices

From £133 GBP
As of November 4, 2026
Save £1,155 GBP (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,289 GBP at Diamond Exchange Canada · As of November 2, 2026
View at Diamond Exchange Canada

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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG816662424 or 816662424. Listed at 22 retailers as of November 2, 2026, with prices from £133 to £1,289, a £1,155 spread on the same certified stone. Diamond Exchange Canada lists it at £1,289. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.73
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.9°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816662424
Dimensions8.83 × 4.82 × 2.95 mm
L/W Ratio1.83
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
8.83 mm4.82 mm0.73 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816662424
Side View
Table 54.0%Crown 28.9°Girdle: STK-THKPavilion 39.6°Culet: NoneDepth 61.2%

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: £1,289 GBP|Low: £133 GBP|High: £1,947 GBP|Avg: £620 GBP
Diamond Exchange Canada
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November 5, 2026
Retailer 7£133 GBP
Retailer 21£148 GBP
Retailer 18£154 GBP
Retailer 22£165 GBP
Retailer 19£272 GBP
Retailer 3£332 GBP
Retailer 6£344 GBP
Retailer 8£390 GBP
Retailer 5£396 GBP
Retailer 23£467 GBP
Retailer 16£554 GBP
Retailer 13£585 GBP
Retailer 4£652 GBP
Retailer 11£699 GBP
Retailer 20£713 GBP
Retailer 9£741 GBP
Retailer 12£756 GBP
Retailer 17£836 GBP
Retailer 2£848 GBP
Retailer 15£895 GBP
Retailer 10£911 GBP
Retailer 14£911 GBP
Diamond Exchange Canada£1,289 GBP

31 data points across 23 retailers

22 retailers£133 GBP to £1,289 GBP

A
Cheapest Retailer
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£133 GBP
A
Retailer 2
-
£148 GBP
View
Final sale: no returns
A
Retailer 3
-
£154 GBP
View
A
Retailer 4
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£165 GBP
View
A
Retailer 5
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£272 GBP
View
A
Retailer 6
-
£332 GBP
View
Retailer 7
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£344 GBP
View
Price last confirmed 8 days ago
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Retailer 8
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£390 GBP
View
A
Retailer 9
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£396 GBP
View
A
Retailer 10
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£467 GBP
View
B+
Retailer 11
-
£554 GBP
View
B+
Retailer 12
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£585 GBP
View
B+
Retailer 13
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£652 GBP
View
B+
Retailer 14
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£713 GBP
View
Retailer 15
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£741 GBP
View
Price last confirmed 11 days ago
B
Retailer 16
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£756 GBP
View
B
Retailer 17
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£836 GBP
View
B
Retailer 18
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£848 GBP
View
Retailer 19
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£895 GBP
View
Price last confirmed 28 days ago
B
Retailer 20
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£911 GBP
View
B
Retailer 21
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£911 GBP
View
Most Expensive
B
Diamond Exchange Canada
1995491210 · Nov 2
£1,289 GBP
CA$2,416 CAD
View
21 more retailers have this diamond
Prices start from £133 GBPSave up to £1,155 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
£133 GBP