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Marquise|Lab Grown|IGI

3.78ct D VS2 Marquise Lab Grown Diamond

ID • D/VS2 • IGI LG810649938

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG810649938

Diamond specifications and retailer prices

From £594 GBP
$796 USD
As of October 30, 2026
Save £4,511 GBP (88%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £5,105 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.78ct lab-grown marquise diamond

This 3.78ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG810649938 or 810649938. Listed at 11 retailers as of October 29, 2026, with prices from £594 to £5,105, a £4,511 spread on the same certified stone. Do Amore Diamonds lists it at £5,105. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.78
Carat
D
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG810649938
Dimensions16.53 × 7.95 × 5.07 mm
L/W Ratio2.08
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.53 mm7.95 mm3.78 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG810649938
Side View
Table 56.0%Crown 35.3°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.8%

Caratlytics Score

How it works →
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: Oct 30
Current: £5,105 GBP|Low: £570 GBP|High: £5,269 GBP|Avg: £2,137 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 7£594 GBP
Retailer 4£1,068 GBP
Retailer 8£1,111 GBP
Retailer 9£1,111 GBP
Retailer 6£1,112 GBP
Retailer 5£1,638 GBP
Retailer 2£2,864 GBP
Retailer 3£3,694 GBP
Do Amore Diamonds£5,105 GBP

22 data points across 9 retailers

11 retailers£594 GBP to £5,105 GBP

A
Cheapest Retailer
-
£594 GBP
$796 USD
A
Retailer 2
-
£646 GBP
$866 USD
View
Retailer 3
-
£1,068 GBP
View
Price last confirmed 13 days ago
A
Retailer 4
-
£1,111 GBP
$1,488 USD
View
A
Retailer 5
-
£1,111 GBP
$1,488 USD
View
A
Retailer 6
-
£1,112 GBP
$1,490 USD
View
B+
Retailer 7
-
£1,638 GBP
$2,195 USD
View
B+
Retailer 8
-
£2,137 GBP
$2,864 USD
View
B
Retailer 9
-
£2,864 GBP
View
B
Retailer 10
-
£3,694 GBP
$4,950 USD
View
Most Expensive
B
Do Amore Diamonds
7-1792661 · Oct 29
£5,105 GBP
$6,840 USD
View
10 more retailers have this diamond
Prices start from £594 GBPSave up to £4,511 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
3.78ct Marquise
£594 GBP