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Radiant|Lab Grown|IGI

1.67ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG729574235

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG729574235

Diamond specifications and retailer prices

From £1,418 GBP
$1,889 USD
As of October 29, 2026
Save £2,058 GBP (59%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,477 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.67ct lab-grown radiant diamond

This 1.67ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG729574235 or 729574235. Listed at 4 retailers as of October 29, 2026, with prices from £1,418 to £3,477, a £2,058 spread on the same certified stone. Do Amore Diamonds lists it at £3,477. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.67
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729574235
Dimensions8.43 × 5.89 × 3.91 mm
L/W Ratio1.43
Culet sizePointed
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
8.43 mm5.89 mm1.67 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729574235
Side View
Table 63.0%Crown 41.9°Girdle: MediumPavilion 34.7°Culet: NoneDepth 66.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: £3,477 GBP|Low: £375 GBP|High: £3,477 GBP|Avg: £1,432 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 18, 2026
Retailer 9£375 GBP
Retailer 8£665 GBP
Retailer 13£672 GBP
Retailer 3£895 GBP
Retailer 11£942 GBP
Retailer 12£1,327 GBP
Retailer 6£1,418 GBP
Retailer 10£1,545 GBP
Retailer 5£1,642 GBP
Retailer 2£1,772 GBP
Retailer 7£1,832 GBP
Retailer 4£2,064 GBP
Do Amore Diamonds£3,477 GBP

4 data points across 13 retailers

4 retailers£1,418 GBP to £3,477 GBP

B+
Cheapest Retailer
-
£1,418 GBP
$1,889 USD
Retailer 2
-
£1,735 GBP
$2,310 USD
View
Price last confirmed 11 days ago
Retailer 3
-
£1,772 GBP
$2,360 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Do Amore Diamonds
24-567-1062 · Oct 29
£3,477 GBP
$4,630 USD
View
3 more retailers have this diamond
Prices start from £1,418 GBPSave up to £2,058 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.

B+
1.67ct Radiant
£1,418 GBP