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Emerald|Lab Grown|IGI

1.70ct E VVS1 Emerald Lab Grown Diamond

GD • E/VVS1 • IGI LG678534405

Shape and cutting style on the report: Emerald cut

Certificate IGI LG678534405

Diamond specifications and retailer prices

From £188 GBP
$251 USD
As of October 27, 2026
Save £1,069 GBP (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,258 GBP at Rare Carat · As of October 28, 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 VVS1 clarity (very-very-slightly-included), with a standard cut grade and certified by IGI LG678534405 or 678534405. Listed at 19 retailers as of October 27, 2026, with prices from £188 to £1,258, a £1,069 spread on the same certified stone. Rare Carat lists it at £1,258. 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
VVS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678534405
Dimensions7.96 × 5.75 × 3.86 mm
L/W Ratio1.38
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
7.96 mm5.75 mm1.70 ctE / VVS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678534405
Side View
Table 67.0%Crown 34.6°Girdle: MediumPavilion 41.8°Culet: LargeDepth 67.1%

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 27
Current: £1,258 GBP|Low: £188 GBP|High: £1,284 GBP|Avg: £567 GBP|-2.0%
Rare Carat
Retailer 2
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Retailer 19
October 29, 2026
Retailer 17£188 GBP
Retailer 19£210 GBP
Retailer 10£219 GBP
Retailer 5£234 GBP
Retailer 6£234 GBP
Retailer 13£353 GBP
Retailer 11£392 GBP
Retailer 12£401 GBP
Retailer 9£437 GBP
Retailer 2£443 GBP
Retailer 14£544 GBP
Retailer 8£571 GBP
Retailer 16£717 GBP
Retailer 7£751 GBP
Retailer 4£789 GBP
Retailer 18£918 GBP
Retailer 15£937 GBP
Retailer 3£1,018 GBP
Rare Carat£1,258 GBP

41 data points across 19 retailers

19 retailers£188 GBP to £1,258 GBP

A
Cheapest Retailer
-
£188 GBP
$251 USD
A
Retailer 2
-
£210 GBP
$280 USD
View
Final sale: no returns
A
Retailer 3
-
£219 GBP
$291 USD
View
A
Retailer 4
-
£234 GBP
$311 USD
View
A
Retailer 5
-
£234 GBP
$311 USD
View
B+
Retailer 6
-
£353 GBP
$470 USD
View
B+
Retailer 7
-
£392 GBP
$522 USD
View
A
Retailer 8
-
£401 GBP
ZAR 8,631 ZAR
View
B+
Retailer 9
-
£437 GBP
$582 USD
View
B+
Retailer 10
-
£443 GBP
View
B+
Retailer 11
-
£544 GBP
A$1,115 AUD
View
B+
Retailer 12
-
£571 GBP
$760 USD
View
B
Retailer 13
-
£717 GBP
$955 USD
View
B
Retailer 14
-
£751 GBP
$1,000 USD
View
B
Retailer 15
-
£789 GBP
$1,051 USD
View
B
Retailer 16
-
£918 GBP
$1,223 USD
View
B
Retailer 17
-
£937 GBP
View
B
Retailer 18
-
£1,018 GBP
$1,356 USD
View
Most Expensive
B
Rare Carat
V81-11_l_678534405 · Oct 28
£1,258 GBP
$1,675 USD
View
18 more retailers have this diamond
Prices start from £188 GBPSave up to £1,069 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
£188 GBP