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Emerald|Lab Grown|IGI

1.70ct E IF Emerald Lab Grown Diamond

GD • E/IF • IGI LG836690427

Shape and cutting style on the report: Emerald cut

Certificate IGI LG836690427

Diamond specifications and retailer prices

From £268 GBP
$359 USD
As of October 30, 2026
Save £1,035 GBP (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,955 GBP at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.7ct lab-grown emerald diamond

This 1.7ct lab-grown emerald sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG836690427 or 836690427. Listed at 14 retailers as of October 29, 2026, with a 386% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.70
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836690427
Dimensions8.02 × 5.79 × 3.79 mm
L/W Ratio1.39
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.02 mm5.79 mm1.70 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836690427
Side View
Table 66.0%Crown 35.1°Girdle: Slightly ThickPavilion 40.9°Culet: LargeDepth 65.5%

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: Oct 30
Current: £1,955 GBP|Low: £257 GBP|High: £1,996 GBP|Avg: £830 GBP|-2.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 10£268 GBP
Retailer 5£299 GBP
Retailer 13£310 GBP
Retailer 12£332 GBP
Retailer 3£532 GBP
Retailer 2£603 GBP
Retailer 8£770 GBP
Retailer 4£953 GBP
Retailer 11£1,067 GBP
Retailer 9£1,068 GBP
Retailer 6£1,106 GBP
Retailer 14£1,264 GBP
Retailer 7£1,303 GBP
Rare Carat£1,955 GBP

43 data points across 14 retailers

14 retailers£268 GBP to £1,303 GBP

A
Cheapest Retailer
-
£268 GBP
$359 USD
A
Retailer 2
-
£299 GBP
$400 USD
View
Final sale: no returns
A
Retailer 3
-
£310 GBP
$416 USD
View
A
Retailer 4
-
£332 GBP
$445 USD
View
B+
Retailer 5
-
£532 GBP
$713 USD
View
A
Retailer 6
-
£603 GBP
View
B+
Retailer 7
-
£770 GBP
A$1,587 AUD
View
B+
Retailer 8
-
£953 GBP
$1,277 USD
View
B
Retailer 9
-
£1,067 GBP
$1,429 USD
View
B
Retailer 10
-
£1,068 GBP
SGD 1,933 SGD
View
B+
Retailer 11
-
£1,106 GBP
$1,482 USD
View
B
Retailer 12
-
£1,264 GBP
$1,694 USD
View
B
Retailer 13
-
£1,303 GBP
View
Most Expensive
Rare Carat
M24-234B · Oct 18
£1,955 GBP
$2,620 USD
View
Price last confirmed 12 days ago
13 more retailers have this diamond
Prices start from £268 GBPSave up to £1,035 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
1.70ct Emerald
£268 GBP