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Round|Lab Grown|IGI

1.54ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG778647026

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778647026

Diamond specifications and retailer prices

From £166 GBP
$222 USD
As of November 1, 2026
Save £778 GBP (82%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,142 GBP at Brilliant Earth · As of October 16, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778647026 or 778647026. Listed at 25 retailers as of November 1, 2026, with a 470% 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
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778647026
Dimensions7.46 × 7.48 × 4.51 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
7.46 mm7.48 mm1.54 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778647026
Side View
Table 57.0%Crown 33.8°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.4%

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: Nov 1
Current: £1,142 GBP|Low: £164 GBP|High: £1,142 GBP|Avg: £474 GBP
Brilliant Earth
Retailer 2
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Retailer 22
November 1, 2026
Retailer 14£166 GBP
Retailer 13£185 GBP
Retailer 5£193 GBP
Retailer 8£206 GBP
Retailer 9£206 GBP
Retailer 17£309 GBP
Retailer 10£352 GBP
Retailer 2£355 GBP
Retailer 6£361 GBP
Retailer 18£382 GBP
Retailer 20£388 GBP
Retailer 7£396 GBP
Retailer 21£436 GBP
Retailer 3£480 GBP
Retailer 4£563 GBP
Retailer 15£661 GBP
Retailer 12£700 GBP
Retailer 22£822 GBP
Retailer 16£825 GBP
Retailer 19£837 GBP
Retailer 11£944 GBP
Brilliant Earth£1,142 GBP

27 data points across 22 retailers

25 retailers£166 GBP to £944 GBP

A
Cheapest Retailer
-
£166 GBP
$222 USD
A
Retailer 2
-
£185 GBP
$248 USD
View
Final sale: no returns
A
Retailer 3
-
£193 GBP
$258 USD
View
Retailer 4
-
£206 GBP
$276 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£206 GBP
$276 USD
View
A
Retailer 6
-
£309 GBP
View
A
Retailer 7
-
£352 GBP
$471 USD
View
A
Retailer 8
-
£355 GBP
ZAR 7,686 ZAR
View
A
Retailer 9
-
£361 GBP
$484 USD
View
A
Retailer 10
-
£382 GBP
View
A
Retailer 11
-
£388 GBP
€495 EUR
View
A
Retailer 12
-
£396 GBP
$530 USD
View
B+
Retailer 13
-
£436 GBP
A$898 AUD
View
B+
Retailer 14
-
£480 GBP
A$990 AUD
View
B
Retailer 15
-
£563 GBP
$754 USD
View
B+
Retailer 16
-
£661 GBP
$886 USD
View
B
Retailer 17
-
£700 GBP
$938 USD
View
Retailer 18
-
£714 GBP
$957 USD
View
Price last confirmed 41 days ago
B+
Retailer 19
-
£773 GBP
$1,036 USD
View
B
Retailer 20
-
£822 GBP
A$1,694 AUD
View
B
Retailer 21
-
£825 GBP
View
B
Retailer 22
-
£837 GBP
$1,122 USD
View
B
Retailer 23
-
£873 GBP
$1,170 USD
View
B
Retailer 24
-
£944 GBP
$1,265 USD
View
Most Expensive
Brilliant Earth
19935425A · Oct 16
£1,142 GBP
$1,530 USD
View
Price last confirmed 16 days ago
24 more retailers have this diamond
Prices start from £166 GBPSave up to £778 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
£166 GBP