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Emerald|Lab Grown|IGI

2.78ct E IF Emerald Lab Grown Diamond

EX • E/IF • IGI LG776689201

Shape and cutting style on the report: Emerald cut

Certificate IGI LG776689201

Diamond specifications and retailer prices

From £616 GBP
$825 USD
As of October 30, 2026
Save £4,683 GBP (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £5,299 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.78ct lab-grown emerald diamond

This 2.78ct lab-grown emerald sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG776689201 or 776689201. Listed at 24 retailers as of October 29, 2026, with prices from £616 to £5,299, a £4,683 spread on the same certified stone. Brilliant Earth lists it at £5,299. 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

2.78
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776689201
Dimensions9.43 × 6.62 × 4.36 mm
L/W Ratio1.42
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
9.43 mm6.62 mm2.78 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776689201
Side View
Table 64.0%Crown 32.2°Girdle: MediumPavilion 42.1°Culet: LargeDepth 65.9%

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 30
Current: £5,299 GBP|Low: £670 GBP|High: £5,299 GBP|Avg: £1,943 GBP
Brilliant Earth
Retailer 2
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Retailer 19
October 30, 2026
Retailer 3£670 GBP
Retailer 8£690 GBP
Retailer 17£847 GBP
Retailer 5£982 GBP
Retailer 2£1,097 GBP
Retailer 12£1,139 GBP
Retailer 9£1,151 GBP
Retailer 16£1,467 GBP
Retailer 15£1,695 GBP
Retailer 13£1,843 GBP
Retailer 4£1,979 GBP
Retailer 18£2,283 GBP
Retailer 6£2,285 GBP
Retailer 19£2,400 GBP
Retailer 7£2,474 GBP
Retailer 10£2,631 GBP
Retailer 14£2,681 GBP
Retailer 11£4,086 GBP
Brilliant Earth£5,299 GBP

40 data points across 19 retailers

24 retailers£616 GBP to £5,299 GBP

A
Cheapest Retailer
-
£616 GBP
$825 USD
A
Retailer 2
-
£670 GBP
$898 USD
View
A
Retailer 3
-
£690 GBP
$924 USD
View
Final sale: no returns
A
Retailer 4
-
£714 GBP
$957 USD
View
A
Retailer 5
-
£847 GBP
$1,135 USD
View
A
Retailer 6
-
£982 GBP
$1,316 USD
View
A
Retailer 7
-
£1,097 GBP
View
A
Retailer 8
-
£1,139 GBP
€1,453 EUR
View
A
Retailer 9
-
£1,151 GBP
$1,542 USD
View
A
Retailer 10
-
£1,467 GBP
$1,966 USD
View
Retailer 11
-
£1,670 GBP
$2,238 USD
View
Price last confirmed 32 days ago
Retailer 12
-
£1,695 GBP
A$3,493 AUD
View
Price last confirmed 9 days ago
A
Retailer 13
-
£1,843 GBP
ZAR 39,898 ZAR
View
A
Retailer 14
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£1,979 GBP
View
A
Retailer 15
-
£2,008 GBP
$2,691 USD
View
A
Retailer 16
-
£2,235 GBP
$2,995 USD
View
B+
Retailer 17
-
£2,283 GBP
$3,059 USD
View
B+
Retailer 18
-
£2,285 GBP
$3,061 USD
View
B+
Retailer 19
-
£2,400 GBP
SGD 4,346 SGD
View
B+
Retailer 20
-
£2,474 GBP
$3,315 USD
View
Retailer 21
-
£2,631 GBP
A$5,423 AUD
View
Price last confirmed 22 days ago
B+
Retailer 22
-
£2,681 GBP
View
Retailer 23
-
£4,086 GBP
$5,475 USD
View
Price last confirmed 23 days ago
Most Expensive
B
Brilliant Earth
18180826A · Oct 29
£5,299 GBP
$7,100 USD
View
23 more retailers have this diamond
Prices start from £616 GBPSave up to £4,683 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
2.78ct Emerald
£616 GBP