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Radiant|Lab Grown|IGI

1.69ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG768632623

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

Certificate IGI LG768632623

Diamond specifications and retailer prices

From £213 GBP
$283 USD
As of October 30, 2026
Save £3,445 GBP (94%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,657 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.69ct lab-grown radiant diamond

This 1.69ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768632623 or 768632623. Listed at 17 retailers as of October 29, 2026, with prices from £213 to £3,657, a £3,445 spread on the same certified stone. Brilliant Earth lists it at £3,657. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.69
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768632623
Dimensions8.57 × 5.92 × 3.81 mm
L/W Ratio1.45
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
8.57 mm5.92 mm1.69 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768632623
Side View
Table 63.0%Crown 41.7°Girdle: Slightly ThickPavilion 33.6°Culet: NoneDepth 64.4%

Caratlytics Score

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A+
Exceptional
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: £3,657 GBP|Low: £189 GBP|High: £3,770 GBP|Avg: £1,093 GBP|-3.0%
Brilliant Earth
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
Retailer 16
Retailer 17
October 29, 2026
Retailer 11£213 GBP
Retailer 4£247 GBP
Retailer 9£252 GBP
Retailer 12£397 GBP
Retailer 15£435 GBP
Retailer 16£436 GBP
Retailer 5£483 GBP
Retailer 10£679 GBP
Retailer 7£735 GBP
Retailer 14£810 GBP
Retailer 3£831 GBP
Retailer 17£936 GBP
Retailer 2£1,173 GBP
Retailer 8£1,375 GBP
Retailer 13£1,892 GBP
Retailer 6£2,196 GBP
Brilliant Earth£3,657 GBP

31 data points across 17 retailers

17 retailers£213 GBP to £3,657 GBP

A+
Cheapest Retailer
-
£213 GBP
$283 USD
A
Retailer 2
-
£247 GBP
$329 USD
View
A
Retailer 3
-
£252 GBP
$336 USD
View
Final sale: no returns
A
Retailer 4
-
£397 GBP
$529 USD
View
A
Retailer 5
-
£435 GBP
$579 USD
View
A
Retailer 6
-
£436 GBP
$580 USD
View
A
Retailer 7
-
£483 GBP
€612 EUR
View
A
Retailer 8
-
£679 GBP
A$1,391 AUD
View
A
Retailer 9
-
£735 GBP
$979 USD
View
A
Retailer 10
-
£810 GBP
$1,079 USD
View
A
Retailer 11
-
£831 GBP
$1,107 USD
View
A
Retailer 12
-
£936 GBP
$1,247 USD
View
B+
Retailer 13
-
£1,173 GBP
View
Retailer 14
-
£1,375 GBP
A$2,816 AUD
View
Price last confirmed 22 days ago
B
Retailer 15
-
£1,892 GBP
$2,520 USD
View
B
Retailer 16
-
£2,196 GBP
$2,925 USD
View
Most Expensive
B
Brilliant Earth
18701696Y · Oct 29
£3,657 GBP
$4,870 USD
View
16 more retailers have this diamond
Prices start from £213 GBPSave up to £3,445 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+
1.69ct Radiant
£213 GBP