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Emerald|Lab Grown|IGI

1.00ct F VVS1 Emerald Lab Grown Diamond

EX • F/VVS1 • IGI LG831681759

Shape and cutting style on the report: Emerald cut

Certificate IGI LG831681759

Diamond specifications and retailer prices

From £130 GBP
As of November 5, 2026
Save £827 GBP (86%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £957 GBP at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

About this 1ct lab-grown emerald diamond

This 1ct lab-grown emerald sits in the classic one-carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG831681759 or 831681759. Listed at 8 retailers as of November 4, 2026, with prices from £130 to £957, a £827 spread on the same certified stone. Helzberg Diamonds lists it at £957. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831681759
Dimensions6.91 × 4.67 × 3.10 mm
L/W Ratio1.48
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.91 mm4.67 mm1.00 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831681759
Side View
Table 67.0%Crown 34.7°Girdle: Slightly ThickPavilion 39.9°Culet: LargeDepth 66.4%

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: Nov 5
Current: £957 GBP|Low: £130 GBP|High: £957 GBP|Avg: £443 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 2£130 GBP
Retailer 5£144 GBP
Retailer 3£250 GBP
Retailer 7£395 GBP
Retailer 4£466 GBP
Retailer 6£504 GBP
Helzberg Diamonds£957 GBP

2 data points across 7 retailers

8 retailers£130 GBP to £957 GBP

A
Cheapest Retailer
-
£130 GBP
Final sale: no returns
A
Retailer 2
-
£144 GBP
View
A
Retailer 3
-
£250 GBP
View
B+
Retailer 4
-
£395 GBP
View
B+
Retailer 5
-
£466 GBP
View
B+
Retailer 6
-
£490 GBP
View
B
Retailer 7
-
£504 GBP
View
Most Expensive
B
Helzberg Diamonds
ZXZOJHMOHNLP · Nov 4
£957 GBP
$1,288 USD
View
7 more retailers have this diamond
Prices start from £130 GBPSave up to £827 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
1.00ct Emerald
£130 GBP