Emerald|Lab Grown|IGI

1.21ct D VS1 Emerald Lab Grown Diamond

ID • D/VS1 • IGI LG828670632

Shape and cutting style on the report: Emerald cut

Certificate IGI LG828670632

Diamond specifications and retailer prices

From £172 GBP
$231 USD
As of October 31, 2026
Save £567 GBP (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £772 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 1.21ct lab-grown emerald diamond

This 1.21ct lab-grown emerald sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG828670632 or 828670632. Listed at 9 retailers as of October 31, 2026, with a 329% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828670632
Dimensions7.22 × 5.17 × 3.02 mm
L/W Ratio1.40
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.22 mm5.17 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828670632
Side View
Table 69.0%Crown 36.9°Girdle: MediumPavilion 39.3°Culet: LargeDepth 58.4%

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 31
Current: £772 GBP|Low: £172 GBP|High: £17,698 GBP|Avg: £1,655 GBP|-3.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 5£172 GBP
Retailer 7£231 GBP
Retailer 9£275 GBP
Retailer 2£350 GBP
Retailer 3£355 GBP
Retailer 12£526 GBP
Retailer 8£528 GBP
Retailer 4£562 GBP
Retailer 6£610 GBP
Retailer 10£739 GBP
MOH London£772 GBP
Retailer 11£17,698 GBP

38 data points across 12 retailers

9 retailers£172 GBP to £739 GBP

A
Cheapest Retailer
-
£172 GBP
$231 USD
B+
Retailer 2
-
£231 GBP
$310 USD
View
A
Retailer 3
-
£275 GBP
$368 USD
View
A
Retailer 4
-
£350 GBP
View
Retailer 5
-
£526 GBP
$705 USD
View
Price last confirmed 34 days ago
B+
Retailer 6
-
£528 GBP
A$1,089 AUD
View
B
Retailer 7
-
£610 GBP
$818 USD
View
B
Retailer 8
-
£739 GBP
$991 USD
View
Most Expensive
MOH London
LG828670632 · Oct 21
£772 GBP
View
Price last confirmed 11 days ago
8 more retailers have this diamond
Prices start from £172 GBPSave up to £567 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
1.21ct Emerald
£172 GBP