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Radiant|Lab Grown|IGI

1.67ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG801693850

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

Certificate IGI LG801693850

Diamond specifications and retailer prices

From £425 GBP
$570 USD
As of October 30, 2026
Save £3,351 GBP (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,776 GBP at Do Amore Diamonds · As of October 30, 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG801693850 or 801693850. Listed at 13 retailers as of October 30, 2026, with prices from £425 to £3,776, a £3,351 spread on the same certified stone. Do Amore Diamonds lists it at £3,776. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.67
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle32.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801693850
Dimensions8.29 × 5.91 × 3.91 mm
L/W Ratio1.40
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
8.29 mm5.91 mm1.67 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801693850
Side View
Table 64.0%Crown 44°Girdle: Slightly ThickPavilion 32.7°Culet: NoneDepth 66.2%

Caratlytics Score

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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: £3,776 GBP|Low: £425 GBP|High: £4,478 GBP|Avg: £1,808 GBP|-15.7%
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
Retailer 14
Retailer 15
October 30, 2026
Retailer 9£425 GBP
Retailer 14£476 GBP
Retailer 11£625 GBP
Retailer 4£634 GBP
Retailer 5£772 GBP
Retailer 10£812 GBP
Retailer 15£932 GBP
Retailer 12£1,309 GBP
Retailer 13£1,531 GBP
Retailer 8£2,307 GBP
Retailer 6£2,358 GBP
Retailer 7£2,438 GBP
Retailer 2£2,761 GBP
Retailer 3£2,974 GBP
Do Amore Diamonds£3,776 GBP

31 data points across 15 retailers

13 retailers£425 GBP to £3,776 GBP

A
Cheapest Retailer
-
£425 GBP
$570 USD
A
Retailer 2
-
£476 GBP
$638 USD
View
A
Retailer 3
-
£625 GBP
$837 USD
View
A
Retailer 4
-
£634 GBP
$850 USD
View
A
Retailer 5
-
£772 GBP
$1,034 USD
View
A
Retailer 6
-
£812 GBP
$1,088 USD
View
Retailer 7
-
£932 GBP
€1,189 EUR
View
Price last confirmed 7 days ago
B+
Retailer 8
-
£1,309 GBP
$1,754 USD
View
B+
Retailer 9
-
£1,531 GBP
$2,052 USD
View
B
Retailer 10
-
£2,307 GBP
View
B
Retailer 11
-
£2,761 GBP
$3,700 USD
View
B
Retailer 12
-
£2,974 GBP
$3,985 USD
View
Most Expensive
B
Do Amore Diamonds
27-6D357CFBA · Oct 30
£3,776 GBP
$5,060 USD
View
12 more retailers have this diamond
Prices start from £425 GBPSave up to £3,351 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
1.67ct Radiant
£425 GBP