Radiant|Lab Grown|IGI

1.76ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG813655693

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

Certificate IGI LG813655693

Diamond specifications and retailer prices

From £319 GBP
$428 USD
As of October 31, 2026
Save £3,502 GBP (92%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,821 GBP at Brilliant Earth · As of October 29, 2026
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 LG813655693 or 813655693. Listed at 18 retailers as of October 29, 2026, with prices from £319 to £3,821, a £3,502 spread on the same certified stone. Brilliant Earth lists it at £3,821. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813655693
Dimensions8.39 × 5.90 × 4.08 mm
L/W Ratio1.42
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.39 mm5.90 mm1.76 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813655693
Side View
Table 63.0%Crown 41.7°Girdle: MED-STKPavilion 37.6°Culet: NoneDepth 69.2%

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 31
Current: £1,247 GBP|Low: £319 GBP|High: £1,559 GBP|Avg: £827 GBP
Retailer 1
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
October 31, 2026
Retailer 11£319 GBP
Retailer 2£377 GBP
Retailer 7£466 GBP
Retailer 16£565 GBP
Retailer 15£602 GBP
Retailer 8£605 GBP
Retailer 10£636 GBP
Retailer 12£641 GBP
Retailer 5£825 GBP
Retailer 14£997 GBP
Retailer 4£1,013 GBP
Retailer 13£1,128 GBP
Retailer 9£1,167 GBP
Retailer 1£1,247 GBP
Retailer 6£1,396 GBP
Retailer 3£1,525 GBP

18 data points across 16 retailers

18 retailers£319 GBP to £3,821 GBP

A+
Cheapest Retailer
-
£319 GBP
$428 USD
Final sale: no returns
A
Retailer 2
-
£377 GBP
View
A
Retailer 3
-
£466 GBP
$625 USD
View
A
Retailer 4
-
£565 GBP
$757 USD
View
A
Retailer 5
-
£602 GBP
$806 USD
View
Retailer 6
-
£605 GBP
ZAR 13,102 ZAR
View
Price last confirmed 8 days ago
A
Retailer 7
-
£636 GBP
€812 EUR
View
A
Retailer 8
-
£641 GBP
View
A
Retailer 9
-
£825 GBP
A$1,700 AUD
View
B+
Retailer 10
-
£997 GBP
$1,336 USD
View
B+
Retailer 11
-
£1,013 GBP
$1,357 USD
View
B+
Retailer 12
-
£1,128 GBP
SGD 2,043 SGD
View
B+
Retailer 13
-
£1,167 GBP
$1,563 USD
View
B+
Retailer 14
-
£1,247 GBP
$1,671 USD
View
B+
Retailer 15
-
£1,396 GBP
View
Retailer 16
-
£1,483 GBP
A$3,058 AUD
View
Price last confirmed 27 days ago
B+
Retailer 17
-
£1,525 GBP
$2,043 USD
View
Most Expensive
B
Brilliant Earth
20609629A · Oct 29
£3,821 GBP
$5,120 USD
View
17 more retailers have this diamond
Prices start from £319 GBPSave up to £3,502 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+
1.76ct Radiant
£319 GBP