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Oval|Lab Grown|IGI

1.66ct E FL Oval Lab Grown Diamond

E/FL

Diamond specifications and retailer prices

From £2,290 GBP
$3,069 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: £2,290 GBP at Helzberg Diamonds
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Helzberg Diamonds

About this 1.66ct lab-grown oval diamond

This 1.66ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless) and certified by IGI. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.66
Carat
E
Colour
FL
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions9.42 × 6.67 × 4.19 mm
L/W Ratio1.41
Top View
9.42 mm6.67 mm1.66 ctE / FL
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 60.0%CrownGirdlePavilionCuletDepth 62.8%

Caratlytics Score

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C
Average
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Price History

Last verified: Oct 31
Current: £2,290 GBP|Low: £344 GBP|High: £2,290 GBP|Avg: £1,429 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
September 30, 2026
Retailer 3£344 GBP
Retailer 2£1,217 GBP
Helzberg Diamonds£2,290 GBP

3 data points across 3 retailers

1 retailer

C
Helzberg Diamonds
ZXZNOIMGHMGG · Oct 31
£2,290 GBP
$3,069 USD
View

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C
1.66ct Oval
£2,290 GBP