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Emerald|Lab Grown|IGI

4.28ct I VVS2 Emerald Lab Grown Diamond

EX • I/VVS2 • IGI LG779655946

Shape and cutting style on the report: Emerald cut

Certificate IGI LG779655946

Diamond specifications and retailer prices

From £373 GBP
$497 USD
As of October 27, 2026
Save £2,082 GBP (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,456 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 4.28ct lab-grown emerald diamond

This 4.28ct lab-grown emerald sits in the three to five carat band, graded I colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG779655946 or 779655946. Listed at 12 retailers as of October 27, 2026, with prices from £373 to £2,456, a £2,082 spread on the same certified stone. Rare Carat lists it at £2,456. 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

4.28
Carat
I
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779655946
Dimensions11.43 × 7.53 × 5.16 mm
L/W Ratio1.52
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.43 mm7.53 mm4.28 ctI / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779655946
Side View
Table 69.0%Crown 39.2°Girdle: MediumPavilion 41.3°Culet: LargeDepth 68.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £2,456 GBP|Low: £373 GBP|High: £4,070 GBP|Avg: £1,331 GBP
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 29, 2026
Retailer 3£373 GBP
Retailer 7£413 GBP
Retailer 10£461 GBP
Retailer 2£522 GBP
Retailer 14£649 GBP
Retailer 9£678 GBP
Retailer 12£822 GBP
Retailer 6£900 GBP
Retailer 11£1,013 GBP
Retailer 13£1,328 GBP
Retailer 4£1,353 GBP
Retailer 8£1,526 GBP
Rare Carat£2,456 GBP
Retailer 5£4,070 GBP

3 data points across 14 retailers

12 retailers£373 GBP to £2,456 GBP

A
Cheapest Retailer
-
£373 GBP
$497 USD
A
Retailer 2
-
£413 GBP
$550 USD
View
A
Retailer 3
-
£461 GBP
HK$4,800 HKD
View
A
Retailer 4
-
£522 GBP
$695 USD
View
B+
Retailer 5
-
£649 GBP
$864 USD
View
A
Retailer 6
-
£678 GBP
$903 USD
View
A
Retailer 7
-
£822 GBP
ZAR 17,688 ZAR
View
A
Retailer 8
-
£1,013 GBP
$1,349 USD
View
B+
Retailer 9
-
£1,328 GBP
$1,769 USD
View
B+
Retailer 10
-
£1,353 GBP
$1,802 USD
View
B+
Retailer 11
-
£1,526 GBP
View
Most Expensive
B
Rare Carat
KI9466559KF779 · Oct 28
£2,456 GBP
$3,270 USD
View
11 more retailers have this diamond
Prices start from £373 GBPSave up to £2,082 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
4.28ct Emerald
£373 GBP