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Round|Lab Grown|IGI

1.54ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG770644991

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770644991

Diamond specifications and retailer prices

From £186 GBP
As of November 3, 2026
Save £838 GBP (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,024 GBP at With Clarity · As of November 3, 2026
View at With Clarity

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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG770644991 or 770644991. Listed at 19 retailers as of November 3, 2026, with prices from £186 to £1,024, a £838 spread on the same certified stone. With Clarity lists it at £1,024. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770644991
Dimensions7.48 × 7.46 × 4.51 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.48 mm7.46 mm1.54 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770644991
Side View
Table 59.0%Crown 33.4°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.4%

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: Nov 3
Current: £358 GBP|Low: £178 GBP|High: £1,036 GBP|Avg: £499 GBP|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
With Clarity
November 3, 2026
Retailer 16£186 GBP
Retailer 5£215 GBP
Retailer 2£230 GBP
Retailer 7£230 GBP
Retailer 8£355 GBP
Retailer 1£358 GBP
Retailer 3£386 GBP
Retailer 12£397 GBP
Retailer 11£415 GBP
Retailer 4£417 GBP
Retailer 9£538 GBP
Retailer 10£585 GBP
Retailer 14£589 GBP
Retailer 6£740 GBP
Retailer 15£923 GBP
Retailer 13£977 GBP
With Clarity£1,004 GBP

45 data points across 17 retailers

19 retailers£186 GBP to £1,024 GBP

A
Cheapest Retailer
-
£186 GBP
A
Retailer 2
-
£215 GBP
View
A
Retailer 3
-
£230 GBP
View
Retailer 4
-
£230 GBP
View
Price last confirmed 10 days ago
A
Retailer 5
-
£355 GBP
View
A
Retailer 6
-
£358 GBP
View
A
Retailer 7
-
£386 GBP
View
A
Retailer 8
-
£397 GBP
View
A
Retailer 9
-
£415 GBP
View
A
Retailer 10
-
£417 GBP
View
B+
Retailer 11
-
£538 GBP
View
B+
Retailer 12
-
£585 GBP
View
B+
Retailer 13
-
£589 GBP
View
Retailer 14
-
£597 GBP
View
Price last confirmed 17 days ago
B+
Retailer 15
-
£740 GBP
View
B+
Retailer 16
-
£778 GBP
View
Retailer 17
-
£923 GBP
View
Price last confirmed 9 days ago
B
Retailer 18
-
£977 GBP
View
Most Expensive
B
With Clarity
770644991 · Nov 3
£1,024 GBP
$1,373 USD
View
18 more retailers have this diamond
Prices start from £186 GBPSave up to £838 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
£186 GBP