Radiant|Lab Grown|IGI

1.76ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG776607620

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

Certificate IGI LG776607620

Diamond specifications and retailer prices

From £4,172 GBP
$5,590 USD
As of October 26, 2026
16 retailers carry this diamond
Most expensive: £4,172 GBP at Brilliant Earth
View at Brilliant Earth

About this 1.76ct lab-grown radiant diamond

This 1.76ct 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 LG776607620 or 776607620. Listed at 16 retailers as of October 26, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.76
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776607620
Dimensions9.04 × 6.03 × 3.82 mm
L/W Ratio1.50
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
9.04 mm6.03 mm1.76 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776607620
Side View
Table 63.0%Crown 36.6°Girdle: ThinPavilion 32.8°Culet: NoneDepth 62.9%

Caratlytics Score

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Good
Decent quality, room for better deals
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Price History

Last verified: Oct 26
Current: £4,172 GBP|Low: £715 GBP|High: £4,172 GBP|Avg: £1,891 GBP
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
October 22, 2026
Retailer 5£715 GBP
Retailer 8£869 GBP
Retailer 9£929 GBP
Retailer 14£1,044 GBP
Retailer 2£1,272 GBP
Retailer 10£1,487 GBP
Retailer 13£1,703 GBP
Retailer 4£1,879 GBP
Retailer 7£1,994 GBP
Retailer 6£2,263 GBP
Retailer 15£2,317 GBP
Retailer 3£2,726 GBP
Retailer 11£2,788 GBP
Retailer 12£3,112 GBP
Brilliant Earth£4,172 GBP

35 data points across 15 retailers

16 retailers

Retailer 1
-
£866 GBP
$1,161 USD
Price last confirmed 11 days ago
Retailer 2
-
£869 GBP
$1,165 USD
View
Price last confirmed 10 days ago
Retailer 3
-
£929 GBP
View
Price last confirmed 12 days ago
Retailer 4
-
£1,044 GBP
$1,399 USD
View
Price last confirmed 11 days ago
Retailer 5
-
£1,272 GBP
View
Price last confirmed 10 days ago
Retailer 6
-
£1,487 GBP
ZAR 32,177 ZAR
View
Price last confirmed 12 days ago
Retailer 7
-
£1,703 GBP
$2,282 USD
View
Price last confirmed 10 days ago
Retailer 8
-
£1,994 GBP
$2,672 USD
View
Price last confirmed 12 days ago
Retailer 9
-
£2,263 GBP
View
Price last confirmed 10 days ago
Retailer 10
-
£2,317 GBP
$3,105 USD
View
Price last confirmed 12 days ago
Retailer 11
-
£2,430 GBP
$3,256 USD
View
Price last confirmed 11 days ago
Retailer 12
-
£2,726 GBP
$3,652 USD
View
Price last confirmed 11 days ago
Retailer 13
-
£2,788 GBP
View
Price last confirmed 11 days ago
Retailer 14
-
£2,913 GBP
$3,903 USD
View
Price last confirmed 11 days ago
Retailer 15
-
£3,112 GBP
$4,170 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
20992013Y · Oct 26
£4,172 GBP
$5,590 USD
View
15 more retailers have this diamond

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
1.76ct Radiant
£4,172 GBP