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Emerald|Lab Grown|IGI

1.78ct D FL Emerald Lab Grown Diamond

VG • D/FL • IGI LG836603451

Shape and cutting style on the report: Emerald cut

Certificate IGI LG836603451

Diamond specifications and retailer prices

From £640 GBP
HK$6,700 HKD
As of October 30, 2026
Save £2,808 GBP (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,448 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.78ct lab-grown emerald diamond

This 1.78ct lab-grown emerald sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG836603451 or 836603451. Listed at 12 retailers as of October 30, 2026, with prices from £640 to £3,448, a £2,808 spread on the same certified stone. Brilliant Earth lists it at £3,448. 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

1.78
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836603451
Dimensions8.38 × 5.59 × 3.67 mm
L/W Ratio1.50
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
8.38 mm5.59 mm1.78 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836603451
Side View
Table 64.0%Crown 38.9°Girdle: MediumPavilion 37.8°Culet: LargeDepth 65.7%

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: £3,448 GBP|Low: £640 GBP|High: £3,448 GBP|Avg: £1,382 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 11£640 GBP
Retailer 12£784 GBP
Retailer 5£853 GBP
Retailer 2£869 GBP
Retailer 7£954 GBP
Retailer 8£1,090 GBP
Retailer 9£1,315 GBP
Retailer 3£1,773 GBP
Retailer 4£1,796 GBP
Retailer 6£2,424 GBP
Retailer 10£2,590 GBP
Brilliant Earth£3,448 GBP

9 data points across 12 retailers

12 retailers£640 GBP to £3,448 GBP

A
Cheapest Retailer
-
£640 GBP
HK$6,700 HKD
B+
Retailer 2
-
£784 GBP
$1,050 USD
View
B+
Retailer 3
-
£853 GBP
€1,088 EUR
View
B+
Retailer 4
-
£869 GBP
View
B+
Retailer 5
-
£954 GBP
ZAR 20,659 ZAR
View
B+
Retailer 6
-
£1,090 GBP
$1,460 USD
View
B+
Retailer 7
-
£1,315 GBP
$1,762 USD
View
B
Retailer 8
-
£1,773 GBP
$2,375 USD
View
B
Retailer 9
-
£1,796 GBP
$2,406 USD
View
B
Retailer 10
-
£2,424 GBP
View
B
Retailer 11
-
£2,590 GBP
$3,470 USD
View
Most Expensive
B
Brilliant Earth
22234406A · Oct 30
£3,448 GBP
$4,620 USD
View
11 more retailers have this diamond
Prices start from £640 GBPSave up to £2,808 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
1.78ct Emerald
£640 GBP