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Emerald|Lab Grown|IGI

1.33ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG506195950

Shape and cutting style on the report: Emerald cut

Certificate IGI LG506195950

Diamond specifications and retailer prices

From £620 GBP
$831 USD
As of November 1, 2026
Save £1,034 GBP (63%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,023 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 1.33ct lab-grown emerald diamond

This 1.33ct lab-grown emerald sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG506195950 or 506195950. Listed at 12 retailers as of October 31, 2026, with a 167% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.33
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.1°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG506195950
Dimensions7.71 × 4.98 × 3.43 mm
L/W Ratio1.55
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.71 mm4.98 mm1.33 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG506195950
Side View
Table 66.0%Crown 29.1°Girdle: MediumPavilion 39°Culet: LNGDepth 68.9%

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: Nov 1
Current: £2,023 GBP|Low: £596 GBP|High: £2,733 GBP|Avg: £1,110 GBP
NZ Jewellers
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 8£620 GBP
Retailer 3£675 GBP
Retailer 4£694 GBP
Retailer 10£719 GBP
Retailer 12£719 GBP
Retailer 9£821 GBP
Retailer 6£851 GBP
Retailer 5£1,105 GBP
Retailer 11£1,159 GBP
Retailer 7£1,654 GBP
NZ Jewellers£2,023 GBP
Retailer 2£2,697 GBP

43 data points across 12 retailers

12 retailers£620 GBP to £1,654 GBP

B+
Cheapest Retailer
-
£620 GBP
$831 USD
B
Retailer 2
-
£675 GBP
$904 USD
View
B
Retailer 3
-
£694 GBP
$930 USD
View
Final sale: no returns
Retailer 4
-
£719 GBP
$964 USD
View
Price last confirmed 20 days ago
B
Retailer 5
-
£719 GBP
$964 USD
View
B
Retailer 6
-
£821 GBP
$1,100 USD
View
B
Retailer 7
-
£851 GBP
$1,140 USD
View
B
Retailer 8
-
£1,105 GBP
View
B
Retailer 9
-
£1,159 GBP
$1,553 USD
View
B
Retailer 10
-
£1,654 GBP
$2,216 USD
View
Most Expensive
NZ Jewellers
6a4bebee-fd67-407f-a47c-4b6e2b17fecc · Oct 31
£2,023 GBP
$2,710 USD
View
Price under review
10 more retailers have this diamond
Prices start from £620 GBPSave up to £1,034 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+
1.33ct Emerald
£620 GBP