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Round|Lab Grown|IGI

1.54ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG768651071

Shape and cutting style on the report: Round brilliant

Certificate IGI LG768651071

Diamond specifications and retailer prices

From £246 GBP
$330 USD
As of October 29, 2026
Save £1,924 GBP (89%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £2,171 GBP at Queensmith · As of October 27, 2026
View at Queensmith

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768651071 or 768651071. Listed at 27 retailers as of October 27, 2026, with prices from £246 to £2,171, a £1,924 spread on the same certified stone. Queensmith lists it at £2,171. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768651071
Dimensions7.38 × 7.42 × 4.58 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
7.38 mm7.42 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768651071
Side View
Table 56.0%Crown 35.7°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.9%

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: Oct 29
Current: £711 GBP|Low: £237 GBP|High: £2,985 GBP|Avg: £706 GBP|+3.1%
Retailer 1
Retailer 2
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Retailer 4
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Retailer 11
Retailer 12
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Retailer 17
October 30, 2026
Retailer 4£246 GBP
Retailer 2£279 GBP
Retailer 7£286 GBP
Retailer 6£305 GBP
Retailer 9£334 GBP
Retailer 8£410 GBP
Retailer 17£422 GBP
Retailer 14£489 GBP
Retailer 16£525 GBP
Retailer 5£528 GBP
Retailer 12£545 GBP
Retailer 1£711 GBP
Retailer 15£712 GBP
Retailer 3£1,073 GBP
Retailer 13£1,231 GBP
Retailer 10£1,291 GBP
Retailer 11£1,933 GBP

34 data points across 17 retailers

27 retailers£246 GBP to £2,171 GBP

A
Cheapest Retailer
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£246 GBP
$330 USD
A
Retailer 2
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£279 GBP
$374 USD
View
Final sale: no returns
A
Retailer 3
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£286 GBP
$383 USD
View
A
Retailer 4
-
£305 GBP
$409 USD
View
A
Retailer 5
-
£305 GBP
$409 USD
View
A
Retailer 6
-
£334 GBP
HK$3,500 HKD
View
A
Retailer 7
-
£410 GBP
$550 USD
View
A
Retailer 8
-
£422 GBP
$565 USD
View
A
Retailer 9
-
£489 GBP
€624 EUR
View
A
Retailer 10
-
£525 GBP
ZAR 11,367 ZAR
View
A
Retailer 11
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£528 GBP
A$1,088 AUD
View
A
Retailer 12
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£545 GBP
View
A
Retailer 13
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£554 GBP
$742 USD
View
A
Retailer 14
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£711 GBP
$953 USD
View
A
Retailer 15
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£712 GBP
A$1,468 AUD
View
B+
Retailer 16
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£745 GBP
$998 USD
View
Retailer 17
-
£833 GBP
$1,116 USD
View
Price last confirmed 44 days ago
B+
Retailer 18
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£976 GBP
SGD 1,768 SGD
View
B+
Retailer 19
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£982 GBP
$1,316 USD
View
B+
Retailer 20
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£1,015 GBP
$1,360 USD
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B+
Retailer 21
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£1,040 GBP
$1,393 USD
View
B+
Retailer 22
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£1,073 GBP
$1,438 USD
View
B+
Retailer 23
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£1,201 GBP
$1,609 USD
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B+
Retailer 24
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£1,231 GBP
View
B+
Retailer 25
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£1,291 GBP
A$2,662 AUD
View
B
Retailer 26
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£1,933 GBP
$2,590 USD
View
Most Expensive
B
Queensmith
LG768651071 · Oct 27
£2,171 GBP
View
26 more retailers have this diamond
Prices start from £246 GBPSave up to £1,924 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
£246 GBP