CaratHunter
Plans
Marquise|Lab Grown|IGI

0.73ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG800638180

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800638180

Diamond specifications and retailer prices

From £318 GBP
As of November 5, 2026
Save £1,646 GBP (84%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £2,638 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800638180 or 800638180. Listed at 25 retailers as of November 1, 2026, with a 518% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800638180
Dimensions9.53 × 4.51 × 2.85 mm
L/W Ratio2.11
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
9.53 mm4.51 mm0.73 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800638180
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £2,638 GBP|Low: £330 GBP|High: £2,638 GBP|Avg: £997 GBP
Do Amore Diamonds
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
Retailer 17
November 5, 2026
Retailer 16£344 GBP
Retailer 6£385 GBP
Retailer 7£397 GBP
Retailer 4£426 GBP
Retailer 9£426 GBP
Retailer 3£632 GBP
Retailer 14£684 GBP
Retailer 15£731 GBP
Retailer 2£776 GBP
Retailer 11£854 GBP
Retailer 13£1,055 GBP
Retailer 8£1,231 GBP
Retailer 5£1,238 GBP
Retailer 17£1,370 GBP
Retailer 10£1,617 GBP
Retailer 12£1,964 GBP
Do Amore Diamonds£2,638 GBP

41 data points across 17 retailers

25 retailers£318 GBP to £1,964 GBP

A
Cheapest Retailer
-
£318 GBP
A
Retailer 2
-
£344 GBP
View
A
Retailer 3
-
£385 GBP
View
Final sale: no returns
A
Retailer 4
-
£385 GBP
View
A
Retailer 5
-
£397 GBP
View
Retailer 6
-
£421 GBP
View
Price last confirmed 41 days ago
Retailer 7
-
£426 GBP
View
Price last confirmed 20 days ago
A
Retailer 8
-
£426 GBP
View
A
Retailer 9
-
£458 GBP
View
B+
Retailer 10
-
£632 GBP
View
Retailer 11
-
£684 GBP
View
Price last confirmed 9 days ago
B+
Retailer 12
-
£731 GBP
View
B+
Retailer 13
-
£776 GBP
View
B+
Retailer 14
-
£854 GBP
View
B
Retailer 15
-
£1,045 GBP
View
B
Retailer 16
-
£1,055 GBP
View
B
Retailer 17
-
£1,231 GBP
View
B
Retailer 18
-
£1,238 GBP
View
B
Retailer 19
-
£1,317 GBP
View
B
Retailer 20
-
£1,370 GBP
View
B
Retailer 21
-
£1,501 GBP
View
B
Retailer 22
-
£1,617 GBP
View
B
Retailer 23
-
£1,827 GBP
View
B
Retailer 24
-
£1,964 GBP
View
Most Expensive
Do Amore Diamonds
20-D78806 · Nov 4
£2,638 GBP
$3,550 USD
View
Price under review
24 more retailers have this diamond
Prices start from £318 GBPSave up to £1,646 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
£318 GBP