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Round|Lab Grown|IGI

1.54ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG770639797

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770639797

Diamond specifications and retailer prices

From £381 GBP
$510 USD
As of October 29, 2026
Save £3,000 GBP (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,381 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

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 LG770639797 or 770639797. Listed at 22 retailers as of October 29, 2026, with prices from £381 to £3,381, a £3,000 spread on the same certified stone. Do Amore Diamonds lists it at £3,381. 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 angle34.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770639797
Dimensions7.35 × 7.40 × 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
7.35 mm7.40 mm1.54 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770639797
Side View
Table 59.0%Crown 34.9°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.0%

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: £3,381 GBP|Low: £381 GBP|High: £3,657 GBP|Avg: £1,318 GBP|-7.6%
Do Amore Diamonds
Retailer 2
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Retailer 21
November 1, 2026
Retailer 11£381 GBP
Retailer 6£425 GBP
Retailer 3£426 GBP
Retailer 5£472 GBP
Retailer 18£575 GBP
Retailer 20£610 GBP
Retailer 2£667 GBP
Retailer 4£694 GBP
Retailer 7£733 GBP
Retailer 16£781 GBP
Retailer 13£810 GBP
Retailer 17£895 GBP
Retailer 9£1,217 GBP
Retailer 21£1,370 GBP
Retailer 8£1,749 GBP
Retailer 12£1,775 GBP
Retailer 10£1,797 GBP
Retailer 15£1,866 GBP
Retailer 14£1,989 GBP
Retailer 19£2,263 GBP
Do Amore Diamonds£3,381 GBP

35 data points across 21 retailers

22 retailers£381 GBP to £3,381 GBP

A
Cheapest Retailer
-
£381 GBP
$510 USD
A
Retailer 2
-
£425 GBP
$570 USD
View
Final sale: no returns
A
Retailer 3
-
£426 GBP
$571 USD
View
A
Retailer 4
-
£472 GBP
$632 USD
View
Retailer 5
-
£510 GBP
$684 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
£575 GBP
$770 USD
View
A
Retailer 7
-
£610 GBP
$818 USD
View
A
Retailer 8
-
£667 GBP
View
A
Retailer 9
-
£694 GBP
$930 USD
View
A
Retailer 10
-
£733 GBP
$982 USD
View
A
Retailer 11
-
£781 GBP
€997 EUR
View
B+
Retailer 12
-
£810 GBP
View
B+
Retailer 13
-
£895 GBP
ZAR 19,371 ZAR
View
B+
Retailer 14
-
£1,217 GBP
$1,631 USD
View
B+
Retailer 15
-
£1,370 GBP
$1,835 USD
View
B
Retailer 16
-
£1,749 GBP
$2,344 USD
View
B
Retailer 17
-
£1,775 GBP
$2,379 USD
View
B
Retailer 18
-
£1,797 GBP
SGD 3,254 SGD
View
B
Retailer 19
-
£1,866 GBP
$2,500 USD
View
Retailer 20
-
£1,989 GBP
$2,665 USD
View
Price last confirmed 14 days ago
B
Retailer 21
-
£2,263 GBP
View
Most Expensive
B
Do Amore Diamonds
27-E4134316C · Oct 30
£3,381 GBP
$4,530 USD
View
21 more retailers have this diamond
Prices start from £381 GBPSave up to £3,000 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
£381 GBP