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Emerald|Lab Grown|IGI

3.18ct D IF Emerald Lab Grown Diamond

VG • D/IF • IGI LG849629603

Shape and cutting style on the report: Emerald cut

Certificate IGI LG849629603

Diamond specifications and retailer prices

From £1,122 GBP
$1,503 USD
As of October 31, 2026
Save £3,084 GBP (73%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,205 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.18ct lab-grown emerald diamond

This 3.18ct lab-grown emerald sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG849629603 or 849629603. Listed at 8 retailers as of October 30, 2026, with prices from £1,122 to £4,205, a £3,084 spread on the same certified stone. Taylor and Hart lists it at £4,205. 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

3.18
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849629603
Dimensions9.87 × 7.04 × 4.57 mm
L/W Ratio1.40
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
9.87 mm7.04 mm3.18 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG849629603
Side View
Table 66.0%Crown 34.6°Girdle: Slightly ThickPavilion 40.8°Culet: LargeDepth 64.9%

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: £1,687 GBP|Low: £1,122 GBP|High: £4,205 GBP|Avg: £2,446 GBP|+0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Taylor and Hart
October 31, 2026
Retailer 2£1,122 GBP
Retailer 6£1,366 GBP
Retailer 1£1,687 GBP
Retailer 5£1,969 GBP
Retailer 4£2,405 GBP
Retailer 3£2,889 GBP
Retailer 7£3,223 GBP
Taylor and Hart£4,205 GBP

2 data points across 8 retailers

8 retailers£1,122 GBP to £4,205 GBP

A
Cheapest Retailer
-
£1,122 GBP
$1,503 USD
A
Retailer 2
-
£1,366 GBP
$1,830 USD
View
A
Retailer 3
-
£1,687 GBP
View
A
Retailer 4
-
£1,969 GBP
$2,638 USD
View
B+
Retailer 5
-
£2,405 GBP
$3,222 USD
View
B+
Retailer 6
-
£2,889 GBP
View
B+
Retailer 7
-
£3,223 GBP
$4,319 USD
View
Most Expensive
B
Taylor and Hart
W5EY4JW · Oct 30
£4,205 GBP
$5,635 USD
View
7 more retailers have this diamond
Prices start from £1,122 GBPSave up to £3,084 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
3.18ct Emerald
£1,122 GBP