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Emerald|Lab Grown|IGI

3.70ct G VS1 Emerald Lab Grown Diamond

EX • G/VS1 • IGI LG645459299

Shape and cutting style on the report: Emerald cut

Certificate IGI LG645459299

Diamond specifications and retailer prices

From £478 GBP
$640 USD
As of October 31, 2026
Save £3,814 GBP (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,291 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.7ct lab-grown emerald diamond

This 3.7ct lab-grown emerald sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG645459299 or 645459299. Listed at 21 retailers as of October 29, 2026, with prices from £478 to £4,291, a £3,814 spread on the same certified stone. Brilliant Earth lists it at £4,291. 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

3.70
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645459299
Dimensions10.34 × 7.32 × 5.09 mm
L/W Ratio1.41
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.34 mm7.32 mm3.70 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645459299
Side View
Table 61.0%Crown 38.8°Girdle: MED-STKPavilion 41.3°Culet: LNGDepth 69.5%

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 31
Current: £4,291 GBP|Low: £478 GBP|High: £4,426 GBP|Avg: £1,467 GBP|-3.0%
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 16£478 GBP
Retailer 5£529 GBP
Retailer 6£529 GBP
Retailer 10£627 GBP
Retailer 9£701 GBP
Retailer 7£810 GBP
Retailer 2£916 GBP
Retailer 11£1,234 GBP
Retailer 13£1,269 GBP
Retailer 15£1,313 GBP
Retailer 8£1,695 GBP
Retailer 4£1,704 GBP
Retailer 17£1,764 GBP
Retailer 14£1,955 GBP
Retailer 12£2,314 GBP
Retailer 3£3,791 GBP
Brilliant Earth£4,291 GBP

43 data points across 17 retailers

21 retailers£478 GBP to £4,291 GBP

Retailer 1
-
£410 GBP
$549 USD
Price last confirmed 29 days ago
Retailer 2
-
£478 GBP
$640 USD
View
Price last confirmed 25 days ago
A
Retailer 3
-
£478 GBP
$640 USD
View
Final sale: no returns
Retailer 4
-
£529 GBP
$709 USD
View
Price last confirmed 28 days ago
A
Retailer 5
-
£627 GBP
$840 USD
View
B+
Retailer 6
-
£701 GBP
$939 USD
View
A
Retailer 7
-
£785 GBP
$1,052 USD
View
A
Retailer 8
-
£810 GBP
$1,085 USD
View
A
Retailer 9
-
£916 GBP
View
B+
Retailer 10
-
£1,234 GBP
A$2,544 AUD
View
B+
Retailer 11
-
£1,269 GBP
ZAR 27,461 ZAR
View
B+
Retailer 12
-
£1,313 GBP
$1,759 USD
View
Retailer 13
-
£1,536 GBP
$2,058 USD
View
Price last confirmed 31 days ago
B+
Retailer 14
-
£1,695 GBP
View
B+
Retailer 15
-
£1,704 GBP
$2,283 USD
View
B
Retailer 16
-
£1,764 GBP
$2,363 USD
View
Retailer 17
-
£1,955 GBP
$2,620 USD
View
Price last confirmed 13 days ago
B
Retailer 18
-
£1,973 GBP
$2,644 USD
View
B
Retailer 19
-
£2,314 GBP
View
B
Retailer 20
-
£3,791 GBP
$5,080 USD
View
Most Expensive
B
Brilliant Earth
18588717A · Oct 29
£4,291 GBP
$5,750 USD
View
20 more retailers have this diamond
Prices start from £478 GBPSave up to £3,814 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
3.70ct Emerald
£478 GBP