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Radiant|Lab Grown|IGI

1.30ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG836617800

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

Certificate IGI LG836617800

Diamond specifications and retailer prices

From £260 GBP
As of November 2, 2026
Save £1,655 GBP (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,180 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836617800 or 836617800. Listed at 13 retailers as of November 2, 2026, with a 637% 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.8°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836617800
Dimensions7.46 × 5.52 × 3.64 mm
L/W Ratio1.35
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
7.46 mm5.52 mm1.30 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836617800
Side View
Table 66.0%Crown 46.8°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 65.9%

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 2
Current: £2,180 GBP|Low: £260 GBP|High: £2,884 GBP|Avg: £923 GBP|-0.5%
Rare Carat
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
November 2, 2026
Retailer 2£260 GBP
Retailer 4£322 GBP
Retailer 6£356 GBP
Retailer 7£466 GBP
Retailer 9£482 GBP
Retailer 3£568 GBP
Retailer 15£613 GBP
Retailer 13£639 GBP
Retailer 16£684 GBP
Retailer 14£920 GBP
Retailer 12£953 GBP
Retailer 11£1,072 GBP
Retailer 8£1,174 GBP
Retailer 5£1,409 GBP
Retailer 10£1,915 GBP
Rare Carat£2,180 GBP

13 data points across 16 retailers

13 retailers£260 GBP to £1,915 GBP

A
Cheapest Retailer
-
£260 GBP
Retailer 2
-
£276 GBP
$370 USD
View
Price last confirmed 29 days ago
A
Retailer 3
-
£322 GBP
$432 USD
View
Final sale: no returns
Retailer 4
-
£356 GBP
$478 USD
View
Price last confirmed 31 days ago
A
Retailer 5
-
£482 GBP
€616 EUR
View
Retailer 6
-
£613 GBP
ZAR 13,286 ZAR
View
Price last confirmed 28 days ago
Retailer 7
-
£920 GBP
$1,234 USD
View
Price last confirmed 28 days ago
B+
Retailer 8
-
£953 GBP
SGD 1,729 SGD
View
B
Retailer 9
-
£1,072 GBP
$1,439 USD
View
Retailer 10
-
£1,174 GBP
$1,575 USD
View
Price last confirmed 29 days ago
Retailer 11
-
£1,409 GBP
View
Price last confirmed 30 days ago
B
Retailer 12
-
£1,915 GBP
$2,570 USD
View
Most Expensive
Rare Carat
JH-247174 · Oct 21
£2,180 GBP
$2,925 USD
View
Price last confirmed 12 days ago
12 more retailers have this diamond
Prices start from £260 GBPSave up to £1,655 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
£260 GBP