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Round|Lab Grown|IGI

1.50ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG677564735

Shape and cutting style on the report: Round brilliant

Certificate IGI LG677564735

Diamond specifications and retailer prices

From £150 GBP
As of November 5, 2026
Save £742 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £893 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG677564735 or 677564735. Listed at 15 retailers as of November 5, 2026, with prices from £150 to £893, a £742 spread on the same certified stone. Reve Diamonds lists it at £893. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677564735
Dimensions7.37 × 7.32 × 4.42 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.37 mm7.32 mm1.50 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677564735
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
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: £338 GBP|Low: £150 GBP|High: £893 GBP|Avg: £403 GBP|-8.3%
Retailer 1
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
Reve Diamonds
November 6, 2026
Retailer 5£150 GBP
Retailer 2£167 GBP
Retailer 3£175 GBP
Retailer 14£186 GBP
Retailer 6£210 GBP
Retailer 12£314 GBP
Retailer 10£323 GBP
Retailer 1£338 GBP
Retailer 9£432 GBP
Retailer 8£542 GBP
Retailer 13£600 GBP
Retailer 11£602 GBP
Retailer 4£639 GBP
Retailer 7£869 GBP
Reve Diamonds£893 GBP

44 data points across 15 retailers

15 retailers£150 GBP to £893 GBP

A
Cheapest Retailer
-
£150 GBP
A
Retailer 2
-
£167 GBP
View
Final sale: no returns
A
Retailer 3
-
£175 GBP
View
A
Retailer 4
-
£186 GBP
View
Retailer 5
-
£210 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£314 GBP
View
B+
Retailer 7
-
£323 GBP
View
A
Retailer 8
-
£338 GBP
View
B+
Retailer 9
-
£432 GBP
View
B+
Retailer 10
-
£542 GBP
View
B
Retailer 11
-
£600 GBP
View
B+
Retailer 12
-
£602 GBP
View
B
Retailer 13
-
£639 GBP
View
B
Retailer 14
-
£869 GBP
View
Most Expensive
B
Reve Diamonds
C6DDC8026 · Nov 6
£893 GBP
$1,201 USD
View
14 more retailers have this diamond
Prices start from £150 GBPSave up to £742 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
£150 GBP