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Round|Lab Grown|IGI

1.54ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG729569963

Shape and cutting style on the report: Round brilliant

Certificate IGI LG729569963

Diamond specifications and retailer prices

From £303 GBP
$403 USD
As of October 28, 2026
Save £1,017 GBP (77%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £1,622 GBP at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG729569963 or 729569963. Listed at 27 retailers as of October 28, 2026, with a 336% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729569963
Dimensions7.40 × 7.42 × 4.55 mm
L/W Ratio1.00
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
7.40 mm7.42 mm1.54 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729569963
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
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 28
Current: £1,622 GBP|Low: £271 GBP|High: £1,637 GBP|Avg: £780 GBP|-0.9%
Rare Carat
Retailer 2
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Retailer 24
October 29, 2026
Retailer 6£271 GBP
Retailer 11£303 GBP
Retailer 24£315 GBP
Retailer 3£336 GBP
Retailer 14£336 GBP
Retailer 5£375 GBP
Retailer 23£451 GBP
Retailer 10£452 GBP
Retailer 9£528 GBP
Retailer 19£535 GBP
Retailer 21£578 GBP
Retailer 20£580 GBP
Retailer 2£602 GBP
Retailer 4£694 GBP
Retailer 13£780 GBP
Retailer 22£985 GBP
Retailer 15£1,074 GBP
Retailer 7£1,081 GBP
Retailer 17£1,101 GBP
Retailer 8£1,111 GBP
Retailer 16£1,270 GBP
Retailer 12£1,282 GBP
Retailer 18£1,320 GBP
Rare Carat£1,622 GBP

34 data points across 24 retailers

27 retailers£303 GBP to £1,320 GBP

Retailer 1
-
£271 GBP
$361 USD
Price last confirmed 11 days ago
A
Retailer 2
-
£303 GBP
$403 USD
View
Final sale: no returns
Retailer 3
-
£315 GBP
$419 USD
View
Price last confirmed 9 days ago
Retailer 4
-
£336 GBP
$448 USD
View
Price last confirmed 13 days ago
Retailer 5
-
£336 GBP
$448 USD
View
Price last confirmed 10 days ago
Retailer 6
-
£354 GBP
$472 USD
View
Price last confirmed 44 days ago
A
Retailer 7
-
£375 GBP
HK$3,900 HKD
View
A
Retailer 8
-
£451 GBP
$600 USD
View
A
Retailer 9
-
£452 GBP
$602 USD
View
A
Retailer 10
-
£528 GBP
$703 USD
View
A
Retailer 11
-
£535 GBP
€678 EUR
View
A
Retailer 12
-
£578 GBP
ZAR 12,424 ZAR
View
A
Retailer 13
-
£580 GBP
A$1,188 AUD
View
A
Retailer 14
-
£602 GBP
View
A
Retailer 15
-
£694 GBP
$924 USD
View
A
Retailer 16
-
£780 GBP
A$1,598 AUD
View
Retailer 17
-
£788 GBP
$1,050 USD
View
Price last confirmed 8 days ago
B
Retailer 18
-
£985 GBP
$1,312 USD
View
B+
Retailer 19
-
£1,074 GBP
SGD 1,933 SGD
View
Retailer 20
-
£1,081 GBP
$1,439 USD
View
Price last confirmed 11 days ago
Retailer 21
-
£1,101 GBP
A$2,255 AUD
View
Price last confirmed 29 days ago
B+
Retailer 22
-
£1,111 GBP
$1,479 USD
View
B+
Retailer 23
-
£1,168 GBP
$1,556 USD
View
B+
Retailer 24
-
£1,270 GBP
$1,691 USD
View
B
Retailer 25
-
£1,282 GBP
$1,707 USD
View
B+
Retailer 26
-
£1,320 GBP
View
Most Expensive
Rare Carat
189635699VB729 · Oct 18
£1,622 GBP
$2,160 USD
View
Price last confirmed 11 days ago
26 more retailers have this diamond
Prices start from £303 GBPSave up to £1,017 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
1.54ct Round
£303 GBP