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Round|Lab Grown|IGI

1.30ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG804619575

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804619575

Diamond specifications and retailer prices

From £335 GBP
$450 USD
As of November 1, 2026
Save £894 GBP (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,230 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804619575 or 804619575. Listed at 10 retailers as of November 1, 2026, with prices from £335 to £1,230, a £894 spread on the same certified stone. Rare Carat lists it at £1,230. 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 angle35.2°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804619575
Dimensions6.96 × 6.99 × 4.33 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.96 mm6.99 mm1.30 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804619575
Side View
Table 59.0%Crown 35.2°Girdle: MediumPavilion 41.3°Culet: NoneDepth 62.1%

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 1
Current: £1,230 GBP|Low: £303 GBP|High: £1,248 GBP|Avg: £685 GBP|-1.3%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 7£335 GBP
Retailer 5£405 GBP
Retailer 2£432 GBP
Retailer 8£438 GBP
Retailer 6£604 GBP
Retailer 9£839 GBP
Retailer 4£900 GBP
Retailer 3£999 GBP
Rare Carat£1,230 GBP

34 data points across 9 retailers

10 retailers£335 GBP to £1,230 GBP

Retailer 1
-
£267 GBP
HK$2,800 HKD
Price last confirmed 60 days ago
A
Retailer 2
-
£335 GBP
$450 USD
View
A
Retailer 3
-
£405 GBP
€518 EUR
View
A
Retailer 4
-
£432 GBP
View
A
Retailer 5
-
£438 GBP
$588 USD
View
A
Retailer 6
-
£604 GBP
$810 USD
View
B+
Retailer 7
-
£839 GBP
$1,126 USD
View
B+
Retailer 8
-
£900 GBP
A$1,859 AUD
View
B+
Retailer 9
-
£999 GBP
View
Most Expensive
B+
Rare Carat
PM683-2717A · Nov 1
£1,230 GBP
$1,650 USD
View
9 more retailers have this diamond
Prices start from £335 GBPSave up to £894 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
£335 GBP