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Emerald|Lab Grown|IGI

3.18ct D IF Emerald Lab Grown Diamond

EX • D/IF • IGI LG786648233

Shape and cutting style on the report: Emerald cut

Certificate IGI LG786648233

Diamond specifications and retailer prices

From £1,330 GBP
$1,782 USD
As of October 30, 2026
Save £5,148 GBP (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £6,478 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 top-tier cut grade and certified by IGI LG786648233 or 786648233. Listed at 13 retailers as of October 29, 2026, with prices from £1,330 to £6,478, a £5,148 spread on the same certified stone. Brilliant Earth lists it at £6,478. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.18
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786648233
Dimensions10.16 × 6.91 × 4.52 mm
L/W Ratio1.47
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
10.16 mm6.91 mm3.18 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786648233
Side View
Table 63.0%Crown 34.1°Girdle: MediumPavilion 41.3°Culet: LargeDepth 65.4%

Caratlytics Score

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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: Oct 30
Current: £1,694 GBP|Low: £1,330 GBP|High: £5,048 GBP|Avg: £2,980 GBP|-16.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 11£1,330 GBP
Retailer 1£1,694 GBP
Retailer 2£1,737 GBP
Retailer 12£1,840 GBP
Retailer 7£2,021 GBP
Retailer 5£2,812 GBP
Retailer 8£3,148 GBP
Retailer 6£3,477 GBP
Retailer 10£4,202 GBP
Retailer 4£4,202 GBP
Retailer 9£4,292 GBP
Retailer 3£5,037 GBP

43 data points across 12 retailers

13 retailers£1,330 GBP to £6,478 GBP

A
Cheapest Retailer
-
£1,330 GBP
$1,782 USD
A
Retailer 2
-
£1,694 GBP
View
A
Retailer 3
-
£1,737 GBP
$2,328 USD
View
A
Retailer 4
-
£1,840 GBP
$2,465 USD
View
A
Retailer 5
-
£2,021 GBP
$2,708 USD
View
A
Retailer 6
-
£2,812 GBP
ZAR 60,867 ZAR
View
B+
Retailer 7
-
£3,148 GBP
$4,218 USD
View
B+
Retailer 8
-
£3,477 GBP
View
B+
Retailer 9
-
£4,202 GBP
SGD 7,608 SGD
View
Retailer 10
-
£4,202 GBP
$5,630 USD
View
Price last confirmed 24 days ago
B+
Retailer 11
-
£4,292 GBP
$5,751 USD
View
Retailer 12
-
£5,037 GBP
A$10,384 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
22138143Y · Oct 29
£6,478 GBP
$8,680 USD
View
12 more retailers have this diamond
Prices start from £1,330 GBPSave up to £5,148 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
£1,330 GBP