Marquise|Lab Grown|IGI

0.73ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG813659128

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG813659128

Diamond specifications and retailer prices

From £519 GBP
As of November 4, 2026
22 retailers carry this diamond
Most expensive: £916 GBP at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

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 top-tier cut grade and certified by IGI LG813659128 or 813659128. Listed at 22 retailers as of November 4, 2026. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813659128
Dimensions9.22 × 4.76 × 2.90 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
9.22 mm4.76 mm0.73 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813659128
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: £519 GBP|Low: £176 GBP|High: £1,047 GBP|Avg: £461 GBP
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
Retailer 15
Retailer 16
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Retailer 18
Reve Diamonds
October 29, 2026
Retailer 3£176 GBP
Retailer 10£188 GBP
Retailer 13£196 GBP
Retailer 9£243 GBP
Retailer 5£268 GBP
Retailer 11£347 GBP
Retailer 2£349 GBP
Retailer 12£350 GBP
Retailer 6£352 GBP
Retailer 15£357 GBP
Retailer 17£361 GBP
Retailer 16£499 GBP
Retailer 1£519 GBP
Retailer 4£521 GBP
Retailer 8£644 GBP
Retailer 18£669 GBP
Retailer 7£720 GBP
Retailer 14£786 GBP
Reve Diamonds£916 GBP

28 data points across 19 retailers

22 retailers

Retailer 1
-
£188 GBP
Price last confirmed 34 days ago
Retailer 2
-
£196 GBP
View
Price last confirmed 11 days ago
Retailer 3
-
£198 GBP
View
Price last confirmed 24 days ago
Retailer 4
-
£221 GBP
View
Price last confirmed 37 days ago
Retailer 5
-
£229 GBP
View
Price last confirmed 41 days ago
Retailer 6
-
£243 GBP
View
Price last confirmed 33 days ago
Retailer 7
-
£268 GBP
View
Price last confirmed 11 days ago
Retailer 8
-
£347 GBP
View
Price last confirmed 9 days ago
Retailer 9
-
£349 GBP
View
Price last confirmed 13 days ago
Retailer 10
-
£350 GBP
View
Price last confirmed 10 days ago
Retailer 11
-
£352 GBP
View
Price last confirmed 15 days ago
Retailer 12
-
£357 GBP
View
Price last confirmed 11 days ago
Retailer 13
-
£361 GBP
View
Price last confirmed 12 days ago
Retailer 14
-
£499 GBP
View
Price last confirmed 12 days ago
B+
Retailer 15
-
£519 GBP
View
Retailer 16
-
£521 GBP
View
Price last confirmed 10 days ago
Retailer 17
-
£644 GBP
View
Price last confirmed 12 days ago
Retailer 18
-
£669 GBP
View
Price last confirmed 10 days ago
Retailer 19
-
£720 GBP
View
Price last confirmed 28 days ago
Retailer 20
-
£780 GBP
View
Price last confirmed 32 days ago
Retailer 21
-
£786 GBP
View
Price last confirmed 11 days ago
Most Expensive
Reve Diamonds
D840238C0 · Oct 25
£916 GBP
$1,236 USD
View
Price last confirmed 10 days ago
21 more retailers have this diamond
Prices start from £519 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.

B+
0.73ct Marquise
£519 GBP