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Emerald|Lab Grown|IGI

0.40ct D VS1 Emerald Lab Grown Diamond

VG • D/VS1 • IGI LG579388966

Certificate IGI LG579388966

Diamond specifications and retailer prices

From £210 GBP
$280 USD
As of October 28, 2026
Save £38 GBP (15%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £248 GBP at Zales · As of October 28, 2026
View at Zales

About this 0.4ct lab-grown emerald diamond

This 0.4ct lab-grown emerald sits in the sub-half-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG579388966 or 579388966. Listed at 4 retailers as of October 28, 2026, with prices from £210 to £248, a £38 spread on the same certified stone. Zales lists it at £248. 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

0.40
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG579388966
Dimensions5.10 × 3.71 × 2.20 mm
L/W Ratio1.37
Top View
5.10 mm3.71 mm0.40 ctD / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG579388966
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £221 GBP|Low: £210 GBP|High: £345 GBP|Avg: £279 GBP
Retailer 1
Retailer 2
Retailer 3
Zales
September 26, 2026
Retailer 3£210 GBP
Retailer 1£221 GBP
Retailer 2£248 GBP
Zales£248 GBP

12 data points across 4 retailers

4 retailers£210 GBP to £248 GBP

B+
Cheapest Retailer
-
£210 GBP
$280 USD
B+
Retailer 2
-
£221 GBP
$294 USD
View
B
Retailer 3
-
£248 GBP
$330 USD
View
Most Expensive
B
Zales
517834040 · Oct 28
£248 GBP
$330 USD
View
3 more retailers have this diamond
Prices start from £210 GBPSave up to £38 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.

B+
0.40ct Emerald
£210 GBP