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Marquise|Lab Grown|IGI

0.81ct D IF Marquise Lab Grown Diamond

VG • D/IF • IGI LG816662571

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816662571

Diamond specifications and retailer prices

From £145 GBP
As of November 4, 2026
Save £1,285 GBP (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,431 GBP at Diamond Exchange Canada · As of November 2, 2026
View at Diamond Exchange Canada

About this 0.81ct lab-grown marquise diamond

This 0.81ct lab-grown marquise sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG816662571 or 816662571. Listed at 23 retailers as of November 2, 2026, with prices from £145 to £1,431, a £1,285 spread on the same certified stone. Diamond Exchange Canada lists it at £1,431. 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

0.81
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816662571
Dimensions9.22 × 4.81 × 3.11 mm
L/W Ratio1.92
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 mm4.81 mm0.81 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816662571
Side View
Table 54.0%Crown 33.1°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 64.7%

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: £1,431 GBP|Low: £145 GBP|High: £2,235 GBP|Avg: £684 GBP
Diamond Exchange Canada
Retailer 2
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November 4, 2026
Retailer 18£145 GBP
Retailer 11£163 GBP
Retailer 21£169 GBP
Retailer 3£181 GBP
Retailer 2£259 GBP
Retailer 23£300 GBP
Retailer 10£352 GBP
Retailer 5£363 GBP
Retailer 12£407 GBP
Retailer 9£439 GBP
Retailer 4£500 GBP
Retailer 17£610 GBP
Retailer 7£622 GBP
Retailer 19£640 GBP
Retailer 16£726 GBP
Retailer 15£764 GBP
Retailer 24£767 GBP
Retailer 6£801 GBP
Retailer 14£810 GBP
Retailer 20£876 GBP
Retailer 8£979 GBP
Retailer 13£1,022 GBP
Retailer 22£1,022 GBP
Diamond Exchange Canada£1,431 GBP

28 data points across 24 retailers

23 retailers£145 GBP to £1,431 GBP

A
Cheapest Retailer
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£145 GBP
A
Retailer 2
-
£163 GBP
View
Final sale: no returns
A
Retailer 3
-
£169 GBP
View
A
Retailer 4
-
£181 GBP
View
A
Retailer 5
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£259 GBP
View
A
Retailer 6
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£300 GBP
View
A
Retailer 7
-
£352 GBP
View
A
Retailer 8
-
£363 GBP
View
A
Retailer 9
-
£407 GBP
View
B+
Retailer 10
-
£439 GBP
View
B+
Retailer 11
-
£500 GBP
View
B+
Retailer 12
-
£610 GBP
View
B+
Retailer 13
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£622 GBP
View
B+
Retailer 14
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£640 GBP
View
B
Retailer 15
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£726 GBP
View
B+
Retailer 16
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£767 GBP
View
B
Retailer 17
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£801 GBP
View
Retailer 18
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£810 GBP
View
Price last confirmed 11 days ago
B
Retailer 19
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£876 GBP
View
B
Retailer 20
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£979 GBP
View
B
Retailer 21
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£1,022 GBP
View
B
Retailer 22
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£1,022 GBP
View
Most Expensive
B
Diamond Exchange Canada
1995491236 · Nov 2
£1,431 GBP
CA$2,682 CAD
View
22 more retailers have this diamond
Prices start from £145 GBPSave up to £1,285 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
0.81ct Marquise
£145 GBP