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Round|Lab Grown|IGI

1.50ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG749570657

Shape and cutting style on the report: Round brilliant

Certificate IGI LG749570657

Diamond specifications and retailer prices

From £175 GBP
$234 USD
As of October 29, 2026
Save £797 GBP (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £971 GBP at Reve Diamonds · As of October 30, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG749570657 or 749570657. Listed at 22 retailers as of October 29, 2026, with prices from £175 to £971, a £797 spread on the same certified stone. Reve Diamonds lists it at £971. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749570657
Dimensions7.35 × 7.29 × 4.53 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
7.35 mm7.29 mm1.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749570657
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.0%

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: Oct 29
Current: £407 GBP|Low: £166 GBP|High: £971 GBP|Avg: £442 GBP|+6.0%
Retailer 1
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Retailer 18
Reve Diamonds
October 30, 2026
Retailer 7£175 GBP
Retailer 11£196 GBP
Retailer 15£202 GBP
Retailer 10£214 GBP
Retailer 4£216 GBP
Retailer 17£322 GBP
Retailer 5£366 GBP
Retailer 18£375 GBP
Retailer 12£376 GBP
Retailer 2£404 GBP
Retailer 1£407 GBP
Retailer 16£431 GBP
Retailer 14£566 GBP
Retailer 9£567 GBP
Retailer 8£696 GBP
Retailer 6£735 GBP
Retailer 3£806 GBP
Retailer 13£872 GBP
Reve Diamonds£971 GBP

38 data points across 19 retailers

22 retailers£175 GBP to £971 GBP

A
Cheapest Retailer
-
£175 GBP
$234 USD
A
Retailer 2
-
£196 GBP
$262 USD
View
Final sale: no returns
A
Retailer 3
-
£202 GBP
$271 USD
View
Retailer 4
-
£214 GBP
$287 USD
View
Price last confirmed 18 days ago
A
Retailer 5
-
£216 GBP
$290 USD
View
A
Retailer 6
-
£322 GBP
$431 USD
View
B+
Retailer 7
-
£366 GBP
$491 USD
View
Retailer 8
-
£375 GBP
View
Price last confirmed 13 days ago
A
Retailer 9
-
£376 GBP
€480 EUR
View
B+
Retailer 10
-
£404 GBP
$541 USD
View
B+
Retailer 11
-
£407 GBP
View
B+
Retailer 12
-
£431 GBP
A$888 AUD
View
B+
Retailer 13
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£566 GBP
$758 USD
View
B
Retailer 14
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£567 GBP
$760 USD
View
Retailer 15
-
£690 GBP
$924 USD
View
Price last confirmed 39 days ago
B
Retailer 16
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£696 GBP
$932 USD
View
Retailer 17
-
£698 GBP
$935 USD
View
Price last confirmed 9 days ago
B
Retailer 18
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£735 GBP
$984 USD
View
B
Retailer 19
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£769 GBP
$1,030 USD
View
Retailer 20
-
£806 GBP
$1,080 USD
View
Price last confirmed 9 days ago
B
Retailer 21
-
£872 GBP
View
Most Expensive
B
Reve Diamonds
A2967E34E · Oct 30
£971 GBP
$1,302 USD
View
21 more retailers have this diamond
Prices start from £175 GBPSave up to £797 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
£175 GBP