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Round|Lab Grown|IGI

1.54ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG770649447

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770649447

Diamond specifications and retailer prices

From £500 GBP
$670 USD
As of October 29, 2026
Save £2,336 GBP (82%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £2,836 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG770649447 or 770649447. Listed at 24 retailers as of October 29, 2026, with prices from £500 to £2,836, a £2,336 spread on the same certified stone. Brilliant Earth lists it at £2,836. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770649447
Dimensions7.46 × 7.51 × 4.48 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
7.46 mm7.51 mm1.54 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770649447
Side View
Table 59.0%Crown 33.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £2,836 GBP|Low: £480 GBP|High: £3,694 GBP|Avg: £1,369 GBP|-23.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
Retailer 18
November 1, 2026
Retailer 18£500 GBP
Retailer 17£543 GBP
Retailer 4£580 GBP
Retailer 5£580 GBP
Retailer 12£713 GBP
Retailer 10£761 GBP
Retailer 13£796 GBP
Retailer 7£828 GBP
Retailer 14£892 GBP
Retailer 2£924 GBP
Retailer 15£1,065 GBP
Retailer 6£1,295 GBP
Retailer 3£1,630 GBP
Retailer 8£1,869 GBP
Retailer 9£1,949 GBP
Retailer 16£2,445 GBP
Retailer 11£2,732 GBP
Brilliant Earth£2,836 GBP

40 data points across 18 retailers

24 retailers£500 GBP to £2,836 GBP

A
Cheapest Retailer
-
£500 GBP
$670 USD
A
Retailer 2
-
£543 GBP
$728 USD
View
A
Retailer 3
-
£559 GBP
$749 USD
View
Final sale: no returns
A
Retailer 4
-
£580 GBP
$777 USD
View
Retailer 5
-
£580 GBP
$777 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
£713 GBP
$955 USD
View
B+
Retailer 7
-
£761 GBP
$1,020 USD
View
A
Retailer 8
-
£796 GBP
View
B+
Retailer 9
-
£828 GBP
$1,110 USD
View
B+
Retailer 10
-
£831 GBP
$1,114 USD
View
B+
Retailer 11
-
£892 GBP
A$1,838 AUD
View
B+
Retailer 12
-
£924 GBP
View
B+
Retailer 13
-
£1,065 GBP
ZAR 23,063 ZAR
View
B+
Retailer 14
-
£1,295 GBP
$1,735 USD
View
Retailer 15
-
£1,428 GBP
$1,913 USD
View
Price last confirmed 40 days ago
B
Retailer 16
-
£1,630 GBP
$2,184 USD
View
B
Retailer 17
-
£1,869 GBP
$2,504 USD
View
B
Retailer 18
-
£1,949 GBP
SGD 3,529 SGD
View
B
Retailer 19
-
£1,978 GBP
$2,650 USD
View
B
Retailer 20
-
£2,000 GBP
$2,679 USD
View
B
Retailer 21
-
£2,009 GBP
$2,692 USD
View
B
Retailer 22
-
£2,445 GBP
View
B
Retailer 23
-
£2,732 GBP
€3,486 EUR
View
Most Expensive
B
Brilliant Earth
18991771A · Oct 31
£2,836 GBP
$3,800 USD
View
23 more retailers have this diamond
Prices start from £500 GBPSave up to £2,336 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
£500 GBP