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Round|Lab Grown|IGI

1.17ct E FL Round Lab Grown Diamond

EX • E/FL

Diamond specifications and retailer prices

From £172 GBP
$230 USD
As of October 29, 2026
Save £915 GBP (84%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,087 GBP at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 1.17ct lab-grown round diamond

This 1.17ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI. Listed at 5 retailers as of October 29, 2026, with prices from £172 to £1,087, a £915 spread on the same certified stone. Blue Nile lists it at £1,087. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.17
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions6.68 × 6.71 × 4.17 mm
L/W Ratio1.00
Top View
6.68 mm6.71 mm1.17 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.4%

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 29
Current: £1,087 GBP|Low: £172 GBP|High: £1,704 GBP|Avg: £731 GBP
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 24, 2026
Retailer 3£172 GBP
Retailer 2£199 GBP
Retailer 4£391 GBP
Retailer 5£756 GBP
Blue Nile£1,087 GBP
Retailer 6£1,704 GBP

11 data points across 6 retailers

5 retailers£172 GBP to £1,087 GBP

A
Cheapest Retailer
-
£172 GBP
$230 USD
A
Retailer 2
-
£199 GBP
$267 USD
View
A
Retailer 3
-
£391 GBP
$524 USD
View
B
Retailer 4
-
£756 GBP
$1,013 USD
View
Most Expensive
B
Blue Nile
30353260 · Oct 29
£1,087 GBP
$1,456 USD
View
4 more retailers have this diamond
Prices start from £172 GBPSave up to £915 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
1.17ct Round
£172 GBP