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Round|Lab Grown|IGI

1.53ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG678537456

Shape and cutting style on the report: Round brilliant

Certificate IGI LG678537456

Diamond specifications and retailer prices

From £253 GBP
As of November 3, 2026
Save £2,132 GBP (89%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £2,385 GBP at Brilliant Earth · As of November 3, 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG678537456 or 678537456. Listed at 28 retailers as of November 3, 2026, with prices from £253 to £2,385, a £2,132 spread on the same certified stone. Brilliant Earth lists it at £2,385. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.53
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678537456
Dimensions7.39 × 7.45 × 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
7.39 mm7.45 mm1.53 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678537456
Side View
Table 57.0%Crown 33.8°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.0%

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: Nov 3
Current: £2,385 GBP|Low: £251 GBP|High: £2,719 GBP|Avg: £822 GBP|-12.3%
Brilliant Earth
Retailer 2
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November 5, 2026
Retailer 14£253 GBP
Retailer 19£283 GBP
Retailer 6£294 GBP
Retailer 9£314 GBP
Retailer 10£314 GBP
Retailer 5£426 GBP
Retailer 8£504 GBP
Retailer 11£507 GBP
Retailer 18£521 GBP
Retailer 4£533 GBP
Retailer 21£541 GBP
Retailer 2£557 GBP
Retailer 7£658 GBP
Retailer 13£739 GBP
Retailer 20£831 GBP
Retailer 23£1,001 GBP
Retailer 15£1,010 GBP
Retailer 16£1,041 GBP
Retailer 22£1,187 GBP
Retailer 12£1,220 GBP
Retailer 3£1,266 GBP
Retailer 17£1,400 GBP
Brilliant Earth£2,385 GBP

34 data points across 23 retailers

28 retailers£253 GBP to £2,385 GBP

Retailer 1
-
£251 GBP
Price last confirmed 44 days ago
A
Retailer 2
-
£253 GBP
View
A
Retailer 3
-
£283 GBP
View
Final sale: no returns
A
Retailer 4
-
£294 GBP
View
Retailer 5
-
£307 GBP
View
Price last confirmed 44 days ago
Retailer 6
-
£314 GBP
View
Price last confirmed 11 days ago
A
Retailer 7
-
£314 GBP
View
A
Retailer 8
-
£426 GBP
View
A
Retailer 9
-
£504 GBP
View
A
Retailer 10
-
£507 GBP
View
A
Retailer 11
-
£521 GBP
View
A
Retailer 12
-
£533 GBP
View
A
Retailer 13
-
£541 GBP
View
A
Retailer 14
-
£557 GBP
View
B+
Retailer 15
-
£658 GBP
View
B+
Retailer 16
-
£739 GBP
View
B+
Retailer 17
-
£831 GBP
View
B+
Retailer 18
-
£1,001 GBP
View
Retailer 19
-
£1,001 GBP
View
Price last confirmed 45 days ago
B
Retailer 20
-
£1,010 GBP
View
B
Retailer 21
-
£1,041 GBP
View
B
Retailer 22
-
£1,052 GBP
View
B
Retailer 23
-
£1,142 GBP
View
B
Retailer 24
-
£1,187 GBP
View
B
Retailer 25
-
£1,220 GBP
View
B+
Retailer 26
-
£1,266 GBP
View
B
Retailer 27
-
£1,400 GBP
View
Most Expensive
B
Brilliant Earth
14234477A · Nov 3
£2,385 GBP
$3,220 USD
View
27 more retailers have this diamond
Prices start from £253 GBPSave up to £2,132 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
£253 GBP