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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG803611087

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG803611087

Diamond specifications and retailer prices

From £236 GBP
$317 USD
As of November 2, 2026
Save £1,865 GBP (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,101 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.78ct lab-grown marquise diamond

This 1.78ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG803611087 or 803611087. Listed at 21 retailers as of November 2, 2026, with prices from £236 to £2,101, a £1,865 spread on the same certified stone. Do Amore Diamonds lists it at £2,101. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803611087
Dimensions12.20 × 6.36 × 3.98 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.20 mm6.36 mm1.78 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803611087
Side View
Table 61.0%Crown 35.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.6%

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 2
Current: £2,101 GBP|Low: £236 GBP|High: £2,101 GBP|Avg: £751 GBP
Do Amore Diamonds
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November 2, 2026
Retailer 24£236 GBP
Retailer 6£274 GBP
Retailer 9£366 GBP
Retailer 2£378 GBP
Retailer 16£380 GBP
Retailer 7£389 GBP
Retailer 10£392 GBP
Retailer 3£410 GBP
Retailer 8£417 GBP
Retailer 15£453 GBP
Retailer 5£501 GBP
Retailer 14£700 GBP
Retailer 22£752 GBP
Retailer 18£779 GBP
Retailer 21£842 GBP
Retailer 25£861 GBP
Retailer 23£913 GBP
Retailer 11£963 GBP
Retailer 17£990 GBP
Retailer 4£1,041 GBP
Retailer 13£1,183 GBP
Retailer 19£1,265 GBP
Retailer 12£1,274 GBP
Retailer 20£1,766 GBP
Do Amore Diamonds£2,101 GBP

17 data points across 25 retailers

21 retailers£236 GBP to £2,101 GBP

A
Cheapest Retailer
-
£236 GBP
$317 USD
A
Retailer 2
-
£274 GBP
$368 USD
View
A
Retailer 3
-
£366 GBP
$491 USD
View
A
Retailer 4
-
£378 GBP
View
A
Retailer 5
-
£389 GBP
$522 USD
View
B+
Retailer 6
-
£392 GBP
$526 USD
View
A
Retailer 7
-
£410 GBP
$550 USD
View
A
Retailer 8
-
£417 GBP
$559 USD
View
A
Retailer 9
-
£501 GBP
€640 EUR
View
Retailer 10
-
£700 GBP
$940 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
£752 GBP
A$1,552 AUD
View
B+
Retailer 12
-
£842 GBP
A$1,738 AUD
View
B+
Retailer 13
-
£861 GBP
$1,155 USD
View
B+
Retailer 14
-
£913 GBP
$1,225 USD
View
B+
Retailer 15
-
£963 GBP
CA$1,795 CAD
View
B
Retailer 16
-
£1,041 GBP
$1,397 USD
View
B
Retailer 17
-
£1,183 GBP
$1,588 USD
View
B
Retailer 18
-
£1,265 GBP
View
B
Retailer 19
-
£1,274 GBP
$1,709 USD
View
B
Retailer 20
-
£1,766 GBP
$2,370 USD
View
Most Expensive
B
Do Amore Diamonds
27-B1329BF40 · Nov 2
£2,101 GBP
$2,820 USD
View
20 more retailers have this diamond
Prices start from £236 GBPSave up to £1,865 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
1.78ct Marquise
£236 GBP