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Round|Lab Grown|IGI

1.30ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG839676542

Shape and cutting style on the report: Round brilliant

Certificate IGI LG839676542

Diamond specifications and retailer prices

From £202 GBP
$271 USD
As of November 1, 2026
Save £1,343 GBP (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,545 GBP at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 1.3ct lab-grown round diamond

This 1.3ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG839676542 or 839676542. Listed at 22 retailers as of November 1, 2026, with prices from £202 to £1,545, a £1,343 spread on the same certified stone. Brilliant Earth lists it at £1,545. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839676542
Dimensions6.95 × 6.99 × 4.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.95 mm6.99 mm1.30 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839676542
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £1,545 GBP|Low: £202 GBP|High: £1,545 GBP|Avg: £550 GBP
Brilliant Earth
Retailer 2
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Retailer 21
November 1, 2026
Retailer 21£202 GBP
Retailer 9£235 GBP
Retailer 4£251 GBP
Retailer 12£251 GBP
Retailer 3£337 GBP
Retailer 20£340 GBP
Retailer 16£404 GBP
Retailer 13£405 GBP
Retailer 19£431 GBP
Retailer 15£440 GBP
Retailer 5£440 GBP
Retailer 6£546 GBP
Retailer 17£602 GBP
Retailer 18£611 GBP
Retailer 7£808 GBP
Retailer 8£820 GBP
Retailer 11£845 GBP
Retailer 10£905 GBP
Retailer 2£1,007 GBP
Retailer 14£1,161 GBP
Brilliant Earth£1,545 GBP

28 data points across 21 retailers

22 retailers£202 GBP to £1,545 GBP

A
Cheapest Retailer
-
£202 GBP
$271 USD
A
Retailer 2
-
£235 GBP
$315 USD
View
Retailer 3
-
£251 GBP
$336 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
£251 GBP
$336 USD
View
A
Retailer 5
-
£287 GBP
HK$3,000 HKD
View
A
Retailer 6
-
£337 GBP
$452 USD
View
A
Retailer 7
-
£340 GBP
$455 USD
View
A
Retailer 8
-
£404 GBP
€515 EUR
View
A
Retailer 9
-
£405 GBP
View
A
Retailer 10
-
£431 GBP
ZAR 9,340 ZAR
View
A
Retailer 11
-
£440 GBP
View
A
Retailer 12
-
£440 GBP
$590 USD
View
B+
Retailer 13
-
£546 GBP
$732 USD
View
B+
Retailer 14
-
£602 GBP
$806 USD
View
B+
Retailer 15
-
£611 GBP
A$1,260 AUD
View
B
Retailer 16
-
£808 GBP
$1,082 USD
View
B
Retailer 17
-
£820 GBP
SGD 1,485 SGD
View
B
Retailer 18
-
£845 GBP
$1,132 USD
View
B
Retailer 19
-
£905 GBP
$1,213 USD
View
B+
Retailer 20
-
£1,007 GBP
View
B
Retailer 21
-
£1,161 GBP
$1,555 USD
View
Most Expensive
B
Brilliant Earth
21790960A · Nov 1
£1,545 GBP
$2,070 USD
View
21 more retailers have this diamond
Prices start from £202 GBPSave up to £1,343 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 Round
£202 GBP