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Emerald|Lab Grown|IGI

1.00ct I SI1 Emerald Lab Grown Diamond

VG • I/SI1 • IGI LG436045925

Shape and cutting style on the report: Emerald cut

Certificate IGI LG436045925

Diamond specifications and retailer prices

From £545 GBP
$730 USD
As of October 29, 2026
Save £2,390 GBP (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,935 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown emerald diamond

This 1ct lab-grown emerald sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG436045925 or 436045925. Listed at 11 retailers as of October 29, 2026, with prices from £545 to £2,935, a £2,390 spread on the same certified stone. MOH London lists it at £2,935. 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

1.00
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045925
Dimensions6.80 × 4.68 × 3.12 mm
L/W Ratio1.45
Culet sizeLong
Cert comments
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Top View
6.80 mm4.68 mm1.00 ctI / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436045925
Side View
Table 74.5%Crown 36°Girdle: MediumPavilion 39.8°Culet: LNGDepth 66.7%

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 29
Current: £2,935 GBP|Low: £545 GBP|High: £2,957 GBP|Avg: £1,276 GBP|-0.5%
MOH London
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 8£545 GBP
Retailer 7£742 GBP
Retailer 13£807 GBP
Retailer 14£831 GBP
Retailer 9£861 GBP
Retailer 12£861 GBP
Retailer 6£957 GBP
Retailer 3£993 GBP
Retailer 4£1,239 GBP
Retailer 10£1,375 GBP
Retailer 11£1,613 GBP
Retailer 2£1,855 GBP
Retailer 5£2,464 GBP
MOH London£2,935 GBP

20 data points across 14 retailers

11 retailers£545 GBP to £2,935 GBP

B+
Cheapest Retailer
-
£545 GBP
$730 USD
B+
Retailer 2
-
£742 GBP
$994 USD
View
B
Retailer 3
-
£807 GBP
$1,081 USD
View
B
Retailer 4
-
£831 GBP
$1,113 USD
View
Final sale: no returns
B
Retailer 5
-
£861 GBP
$1,153 USD
View
Retailer 6
-
£861 GBP
$1,153 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
£993 GBP
$1,330 USD
View
B
Retailer 8
-
£1,375 GBP
$1,842 USD
View
B
Retailer 9
-
£1,613 GBP
$2,161 USD
View
C
Retailer 10
-
£1,855 GBP
$2,485 USD
View
Most Expensive
C
MOH London
LG436045925 · Oct 29
£2,935 GBP
View
10 more retailers have this diamond
Prices start from £545 GBPSave up to £2,390 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+
1.00ct Emerald
£545 GBP