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Princess|Lab Grown|IGI

1.54ct D SI1 Princess Lab Grown Diamond

ID • D/SI1 • IGI LG617412672

Shape and cutting style on the report: Princess cut

Certificate IGI LG617412672

Diamond specifications and retailer prices

From £316 GBP
$423 USD
As of October 30, 2026
Save £1,184 GBP (79%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,500 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.54ct lab-grown princess diamond

This 1.54ct lab-grown princess sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG617412672 or 617412672. Listed at 19 retailers as of October 29, 2026, with prices from £316 to £1,500, a £1,184 spread on the same certified stone. Brilliant Earth lists it at £1,500. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.54
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617412672
Dimensions6.32 × 6.19 × 4.47 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.32 mm6.19 mm1.54 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617412672
Side View
Table 69.0%Crown 45.7°Girdle: MediumPavilion 38.2°Culet: NoneDepth 72.2%

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 30
Current: £1,500 GBP|Low: £303 GBP|High: £1,500 GBP|Avg: £723 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 18
October 31, 2026
Retailer 12£316 GBP
Retailer 7£353 GBP
Retailer 18£354 GBP
Retailer 9£392 GBP
Retailer 14£392 GBP
Retailer 11£437 GBP
Retailer 15£438 GBP
Retailer 17£500 GBP
Retailer 6£618 GBP
Retailer 13£625 GBP
Retailer 10£628 GBP
Retailer 2£646 GBP
Retailer 3£840 GBP
Retailer 5£946 GBP
Retailer 16£1,259 GBP
Retailer 8£1,422 GBP
Retailer 4£1,446 GBP
Brilliant Earth£1,500 GBP

39 data points across 18 retailers

19 retailers£316 GBP to £1,500 GBP

A
Cheapest Retailer
-
£316 GBP
$423 USD
A
Retailer 2
-
£353 GBP
$473 USD
View
Final sale: no returns
A
Retailer 3
-
£354 GBP
$474 USD
View
Retailer 4
-
£392 GBP
$525 USD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
£392 GBP
$525 USD
View
B+
Retailer 6
-
£437 GBP
View
B+
Retailer 7
-
£438 GBP
$587 USD
View
B+
Retailer 8
-
£500 GBP
$670 USD
View
B+
Retailer 9
-
£618 GBP
$828 USD
View
B+
Retailer 10
-
£625 GBP
€797 EUR
View
B+
Retailer 11
-
£628 GBP
$841 USD
View
B+
Retailer 12
-
£646 GBP
View
Retailer 13
-
£840 GBP
$1,125 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
£946 GBP
$1,267 USD
View
B
Retailer 15
-
£1,259 GBP
$1,687 USD
View
B
Retailer 16
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£1,284 GBP
$1,720 USD
View
B
Retailer 17
-
£1,422 GBP
$1,906 USD
View
B
Retailer 18
-
£1,446 GBP
View
Most Expensive
B
Brilliant Earth
9989293A · Oct 29
£1,500 GBP
$2,010 USD
View
18 more retailers have this diamond
Prices start from £316 GBPSave up to £1,184 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 Princess
£316 GBP