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Radiant|Lab Grown|IGI

1.30ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG813655847

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

Certificate IGI LG813655847

Diamond specifications and retailer prices

From £210 GBP
As of November 4, 2026
Save £724 GBP (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £959 GBP at Novita Diamonds · As of October 1, 2026
View at Novita Diamonds

About this 1.3ct lab-grown radiant diamond

This 1.3ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG813655847 or 813655847. Listed at 16 retailers as of November 2, 2026, with a 346% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.4°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813655847
Dimensions8.23 × 5.15 × 3.51 mm
L/W Ratio1.60
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.23 mm5.15 mm1.30 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813655847
Side View
Table 68.0%Crown 45.4°Girdle: Slightly ThickPavilion 37.9°Culet: NoneDepth 68.2%

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: Nov 4
Current: £784 GBP|Low: £210 GBP|High: £964 GBP|Avg: £557 GBP|-2.8%
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
November 4, 2026
Retailer 13£210 GBP
Retailer 11£217 GBP
Retailer 4£315 GBP
Retailer 7£352 GBP
Retailer 2£370 GBP
Retailer 3£404 GBP
Retailer 10£439 GBP
Retailer 5£479 GBP
Retailer 12£570 GBP
Retailer 6£647 GBP
Retailer 8£713 GBP
Retailer 9£749 GBP
Retailer 1£784 GBP
Retailer 14£817 GBP
Retailer 15£934 GBP

20 data points across 15 retailers

16 retailers£210 GBP to £934 GBP

A
Cheapest Retailer
-
£210 GBP
Final sale: no returns
A
Retailer 2
-
£217 GBP
View
A
Retailer 3
-
£315 GBP
View
A
Retailer 4
-
£352 GBP
View
A
Retailer 5
-
£370 GBP
View
A
Retailer 6
-
£404 GBP
View
A
Retailer 7
-
£439 GBP
View
A
Retailer 8
-
£479 GBP
View
A
Retailer 9
-
£570 GBP
View
B+
Retailer 10
-
£647 GBP
View
B+
Retailer 11
-
£713 GBP
View
B+
Retailer 12
-
£749 GBP
View
B+
Retailer 13
-
£784 GBP
View
B+
Retailer 14
-
£817 GBP
View
B+
Retailer 15
-
£934 GBP
View
Most Expensive
Novita Diamonds
cert_813655847 · Oct 1
£959 GBP
A$1,991 AUD
View
Price last confirmed 34 days ago
15 more retailers have this diamond
Prices start from £210 GBPSave up to £724 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
1.30ct Radiant
£210 GBP