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Emerald|Lab Grown|IGI

3.78ct F VS2 Emerald Lab Grown Diamond

GD • F/VS2 • IGI LG641477551

Shape and cutting style on the report: Emerald cut

Certificate IGI LG641477551

Diamond specifications and retailer prices

From £325 GBP
$435 USD
As of October 30, 2026
Save £1,181 GBP (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,899 GBP at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 3.78ct lab-grown emerald diamond

This 3.78ct lab-grown emerald sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG641477551 or 641477551. Listed at 17 retailers as of October 30, 2026, with a 364% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.78
Carat
F
Colour
VS2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG641477551
Dimensions10.45 × 7.29 × 4.93 mm
L/W Ratio1.43
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.45 mm7.29 mm3.78 ctF / VS2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG641477551
Side View
Table 61.0%Crown 34.6°Girdle: MED-STKPavilion 39.2°Culet: LNGDepth 67.6%

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: £1,899 GBP|Low: £311 GBP|High: £1,926 GBP|Avg: £799 GBP|-1.4%
Rare Carat
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
October 31, 2026
Retailer 11£325 GBP
Retailer 5£363 GBP
Retailer 2£384 GBP
Retailer 4£402 GBP
Retailer 12£402 GBP
Retailer 9£511 GBP
Retailer 14£633 GBP
Retailer 7£664 GBP
Retailer 6£705 GBP
Retailer 10£1,128 GBP
Retailer 3£1,293 GBP
Retailer 8£1,486 GBP
Retailer 13£1,506 GBP
Rare Carat£1,899 GBP

44 data points across 14 retailers

17 retailers£325 GBP to £1,506 GBP

A
Cheapest Retailer
-
£325 GBP
$435 USD
B+
Retailer 2
-
£363 GBP
$487 USD
View
B+
Retailer 3
-
£384 GBP
$515 USD
View
Final sale: no returns
B+
Retailer 4
-
£402 GBP
$539 USD
View
B+
Retailer 5
-
£402 GBP
$539 USD
View
A
Retailer 6
-
£511 GBP
$685 USD
View
B
Retailer 7
-
£633 GBP
$848 USD
View
B+
Retailer 8
-
£664 GBP
View
B+
Retailer 9
-
£705 GBP
$944 USD
View
B+
Retailer 10
-
£1,092 GBP
$1,463 USD
View
B+
Retailer 11
-
£1,128 GBP
$1,512 USD
View
B+
Retailer 12
-
£1,293 GBP
$1,733 USD
View
B+
Retailer 13
-
£1,317 GBP
$1,765 USD
View
B
Retailer 14
-
£1,450 GBP
$1,943 USD
View
B
Retailer 15
-
£1,486 GBP
View
B
Retailer 16
-
£1,506 GBP
$2,018 USD
View
Most Expensive
Rare Carat
JS-919_l_641477551 · Oct 18
£1,899 GBP
$2,545 USD
View
Price last confirmed 13 days ago
16 more retailers have this diamond
Prices start from £325 GBPSave up to £1,181 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 Emerald
£325 GBP