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1.30ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • IGI LG492110125

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492110125

Diamond specifications and retailer prices

From £1,049 GBP
$1,412 USD
As of November 4, 2026
1 retailer carries this diamond
Only listing: £1,049 GBP at B2C Jewels
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at B2C Jewels

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492110125 or 492110125. Listed at a single retailer as of November 4, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.30
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492110125
Dimensions7.10 × 7.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.10 mm7.05 mm1.30 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492110125
Side View
Table 55.5%Crown 32.1°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.2%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 4
Current: £1,049 GBP|Low: £999 GBP|High: £1,324 GBP|Avg: £1,124 GBP|-20.8%
September 23, 2026
B2C Jewels£1,049 GBP

3 data points across 1 retailer

1 retailer

C
B2C Jewels
20039099 · Nov 4
£1,049 GBP
$1,412 USD
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C
1.30ct Round
£1,049 GBP