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Round|Lab Grown|IGI

1.50ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG848603822

Shape and cutting style on the report: Round brilliant

Certificate IGI LG848603822

Diamond specifications and retailer prices

From £141 GBP
As of November 5, 2026
Save £723 GBP (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £864 GBP at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG848603822 or 848603822. Listed at 18 retailers as of November 5, 2026, with prices from £141 to £864, a £723 spread on the same certified stone. Reve Diamonds lists it at £864. 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

1.50
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848603822
Dimensions7.34 × 7.36 × 4.42 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
7.34 mm7.36 mm1.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848603822
Side View
Table 59.0%Crown 34.1°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.1%

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 5
Current: £311 GBP|Low: £134 GBP|High: £864 GBP|Avg: £413 GBP|+5.3%
Retailer 1
Retailer 2
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Retailer 4
Retailer 5
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Retailer 7
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
Reve Diamonds
November 6, 2026
Retailer 14£141 GBP
Retailer 3£164 GBP
Retailer 9£166 GBP
Retailer 15£175 GBP
Retailer 5£182 GBP
Retailer 8£279 GBP
Retailer 6£307 GBP
Retailer 1£311 GBP
Retailer 10£313 GBP
Retailer 17£332 GBP
Retailer 2£423 GBP
Retailer 11£470 GBP
Retailer 13£509 GBP
Retailer 16£564 GBP
Retailer 7£603 GBP
Retailer 4£721 GBP
Retailer 12£818 GBP
Reve Diamonds£864 GBP

14 data points across 18 retailers

18 retailers£141 GBP to £864 GBP

A
Cheapest Retailer
-
£141 GBP
A
Retailer 2
-
£164 GBP
View
Retailer 3
-
£166 GBP
View
Price last confirmed 12 days ago
A
Retailer 4
-
£175 GBP
View
A
Retailer 5
-
£182 GBP
View
Final sale: no returns
Retailer 6
-
£279 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£307 GBP
View
A
Retailer 8
-
£311 GBP
View
B+
Retailer 9
-
£313 GBP
View
A
Retailer 10
-
£332 GBP
View
B+
Retailer 11
-
£423 GBP
View
B+
Retailer 12
-
£470 GBP
View
B+
Retailer 13
-
£509 GBP
View
B
Retailer 14
-
£564 GBP
View
B
Retailer 15
-
£603 GBP
View
B
Retailer 16
-
£721 GBP
View
B
Retailer 17
-
£818 GBP
View
Most Expensive
B
Reve Diamonds
3986E71AD · Nov 6
£864 GBP
$1,163 USD
View
17 more retailers have this diamond
Prices start from £141 GBPSave up to £723 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
1.50ct Round
£141 GBP