Round|Lab Grown|IGI

1.53ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG756580438

Shape and cutting style on the report: Round brilliant

Certificate IGI LG756580438

Diamond specifications and retailer prices

From £287 GBP
$385 USD
As of November 1, 2026
Save £1,233 GBP (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,520 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG756580438 or 756580438. Listed at 23 retailers as of October 31, 2026, with prices from £287 to £1,520, a £1,233 spread on the same certified stone. Brilliant Earth lists it at £1,520. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.53
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756580438
Dimensions7.35 × 7.30 × 4.55 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 Faint Blue
Top View
7.35 mm7.30 mm1.53 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756580438
Side View
Table 59.0%Crown 36.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £1,520 GBP|Low: £284 GBP|High: £1,736 GBP|Avg: £760 GBP|-12.4%
Brilliant Earth
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
November 2, 2026
Retailer 4£287 GBP
Retailer 6£373 GBP
Retailer 8£432 GBP
Retailer 7£444 GBP
Retailer 14£565 GBP
Retailer 2£570 GBP
Retailer 13£665 GBP
Retailer 9£669 GBP
Retailer 11£738 GBP
Retailer 5£971 GBP
Retailer 3£1,054 GBP
Retailer 12£1,201 GBP
Retailer 10£1,249 GBP
Brilliant Earth£1,520 GBP

44 data points across 14 retailers

23 retailers£287 GBP to £1,520 GBP

Retailer 1
-
£256 GBP
$343 USD
Price last confirmed 41 days ago
Retailer 2
-
£256 GBP
$343 USD
View
Price last confirmed 23 days ago
A
Retailer 3
-
£287 GBP
$385 USD
View
Final sale: no returns
Retailer 4
-
£297 GBP
$398 USD
View
Price last confirmed 20 days ago
Retailer 5
-
£313 GBP
$420 USD
View
Price last confirmed 41 days ago
Retailer 6
-
£317 GBP
$425 USD
View
Price last confirmed 21 days ago
Retailer 7
-
£317 GBP
$425 USD
View
Price last confirmed 31 days ago
A
Retailer 8
-
£373 GBP
$500 USD
View
A
Retailer 9
-
£432 GBP
$580 USD
View
A
Retailer 10
-
£444 GBP
€568 EUR
View
A
Retailer 11
-
£565 GBP
$758 USD
View
A
Retailer 12
-
£570 GBP
View
B+
Retailer 13
-
£665 GBP
$893 USD
View
B+
Retailer 14
-
£669 GBP
$898 USD
View
B+
Retailer 15
-
£712 GBP
$956 USD
View
B+
Retailer 16
-
£738 GBP
A$1,524 AUD
View
B
Retailer 17
-
£971 GBP
SGD 1,760 SGD
View
Retailer 18
-
£1,019 GBP
$1,367 USD
View
Price last confirmed 42 days ago
Retailer 19
-
£1,019 GBP
$1,367 USD
View
Price last confirmed 25 days ago
B
Retailer 20
-
£1,054 GBP
$1,414 USD
View
B
Retailer 21
-
£1,201 GBP
$1,612 USD
View
B
Retailer 22
-
£1,249 GBP
View
Most Expensive
B
Brilliant Earth
17365066A · Oct 31
£1,520 GBP
$2,040 USD
View
22 more retailers have this diamond
Prices start from £287 GBPSave up to £1,233 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
£287 GBP