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Round|Lab Grown|IGI

1.53ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG12287402

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12287402

Diamond specifications and retailer prices

From £247 GBP
$331 USD
As of November 1, 2026
Save £1,947 GBP (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,194 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.53ct lab-grown round diamond

This 1.53ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12287402 or 12287402. Listed at 18 retailers as of October 31, 2026, with prices from £247 to £2,194, a £1,947 spread on the same certified stone. Do Amore Diamonds lists it at £2,194. 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

1.53
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12287402
Dimensions7.37 × 7.42 × 4.55 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment. Type IIa
Top View
7.37 mm7.42 mm1.53 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12287402
Side View
Table 60.0%Crown 35.5°Girdle: MED-UNDPavilion 41.1°Culet: NoneDepth 61.5%

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: £2,194 GBP|Low: £247 GBP|High: £2,194 GBP|Avg: £741 GBP
Do Amore Diamonds
Retailer 2
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Retailer 18
November 1, 2026
Retailer 18£247 GBP
Retailer 15£287 GBP
Retailer 11£302 GBP
Retailer 6£307 GBP
Retailer 14£307 GBP
Retailer 3£357 GBP
Retailer 7£422 GBP
Retailer 9£528 GBP
Retailer 2£546 GBP
Retailer 16£555 GBP
Retailer 10£607 GBP
Retailer 17£899 GBP
Retailer 8£922 GBP
Retailer 13£940 GBP
Retailer 5£1,087 GBP
Retailer 4£1,205 GBP
Retailer 12£1,324 GBP
Do Amore Diamonds£2,194 GBP

15 data points across 18 retailers

18 retailers£247 GBP to £2,194 GBP

A
Cheapest Retailer
-
£247 GBP
$331 USD
A
Retailer 2
-
£287 GBP
$384 USD
View
B+
Retailer 3
-
£302 GBP
$405 USD
View
A
Retailer 4
-
£307 GBP
$411 USD
View
Retailer 5
-
£307 GBP
$411 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
£357 GBP
$478 USD
View
A
Retailer 7
-
£422 GBP
$565 USD
View
A
Retailer 8
-
£528 GBP
$707 USD
View
A
Retailer 9
-
£546 GBP
View
A
Retailer 10
-
£555 GBP
$743 USD
View
A
Retailer 11
-
£607 GBP
$813 USD
View
A
Retailer 12
-
£899 GBP
$1,204 USD
View
A
Retailer 13
-
£922 GBP
$1,236 USD
View
B+
Retailer 14
-
£940 GBP
$1,260 USD
View
B+
Retailer 15
-
£1,087 GBP
$1,457 USD
View
B+
Retailer 16
-
£1,205 GBP
$1,614 USD
View
B+
Retailer 17
-
£1,324 GBP
View
Most Expensive
B
Do Amore Diamonds
27-9FF8E229B · Oct 31
£2,194 GBP
$2,940 USD
View
17 more retailers have this diamond
Prices start from £247 GBPSave up to £1,947 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
1.53ct Round
£247 GBP