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Round|Lab Grown|IGI

1.53ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG756524531

Shape and cutting style on the report: Round brilliant

Certificate IGI LG756524531

Diamond specifications and retailer prices

From £328 GBP
$440 USD
As of November 1, 2026
Save £1,192 GBP (78%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,520 GBP at Brilliant Earth · As of November 2, 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 LG756524531 or 756524531. Listed at 24 retailers as of November 2, 2026, with prices from £328 to £1,520, a £1,192 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 angle34.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756524531
Dimensions7.37 × 7.41 × 4.59 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
7.37 mm7.41 mm1.53 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756524531
Side View
Table 56.0%Crown 34.7°Girdle: MediumPavilion 41.1°Culet: NoneDepth 62.1%

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 1
Current: £1,520 GBP|Low: £244 GBP|High: £1,736 GBP|Avg: £674 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 6£244 GBP
Retailer 9£328 GBP
Retailer 12£328 GBP
Retailer 10£397 GBP
Retailer 7£420 GBP
Retailer 2£465 GBP
Retailer 5£496 GBP
Retailer 11£567 GBP
Retailer 14£749 GBP
Retailer 3£958 GBP
Retailer 8£977 GBP
Retailer 4£988 GBP
Retailer 13£1,390 GBP
Brilliant Earth£1,520 GBP

40 data points across 14 retailers

24 retailers£328 GBP to £1,520 GBP

Retailer 1
-
£197 GBP
$264 USD
Price last confirmed 15 days ago
Retailer 2
-
£197 GBP
$264 USD
View
Price last confirmed 34 days ago
Retailer 3
-
£228 GBP
$306 USD
View
Price last confirmed 41 days ago
Retailer 4
-
£241 GBP
$323 USD
View
Price last confirmed 34 days ago
Retailer 5
-
£244 GBP
$327 USD
View
Price last confirmed 17 days ago
Retailer 6
-
£244 GBP
$327 USD
View
Price last confirmed 14 days ago
B+
Retailer 7
-
£328 GBP
$440 USD
View
A
Retailer 8
-
£328 GBP
$440 USD
View
A
Retailer 9
-
£397 GBP
€507 EUR
View
A
Retailer 10
-
£420 GBP
ZAR 9,109 ZAR
View
A
Retailer 11
-
£465 GBP
View
A
Retailer 12
-
£496 GBP
$665 USD
View
A
Retailer 13
-
£567 GBP
A$1,170 AUD
View
B+
Retailer 14
-
£645 GBP
$865 USD
View
B+
Retailer 15
-
£749 GBP
$1,005 USD
View
Retailer 16
-
£783 GBP
$1,051 USD
View
Price last confirmed 36 days ago
Retailer 17
-
£783 GBP
$1,051 USD
View
Price last confirmed 15 days ago
B+
Retailer 18
-
£821 GBP
$1,102 USD
View
B+
Retailer 19
-
£892 GBP
$1,197 USD
View
B+
Retailer 20
-
£958 GBP
$1,286 USD
View
B+
Retailer 21
-
£977 GBP
View
Retailer 22
-
£988 GBP
SGD 1,792 SGD
View
Price last confirmed 21 days ago
Retailer 23
-
£1,390 GBP
$1,865 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
20458497A · Nov 2
£1,520 GBP
$2,040 USD
View
23 more retailers have this diamond
Prices start from £328 GBPSave up to £1,192 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
£328 GBP