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Princess|Lab Grown|IGI

1.23ct D VS1 Princess Lab Grown Diamond

ID • D/VS1 • IGI LG720537907

Shape and cutting style on the report: Princess cut

Certificate IGI LG720537907

Diamond specifications and retailer prices

From £148 GBP
$198 USD
As of November 2, 2026
Save £1,414 GBP (91%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,562 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.23ct lab-grown princess diamond

This 1.23ct lab-grown princess sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG720537907 or 720537907. Listed at 15 retailers as of October 27, 2026, with prices from £148 to £1,562, a £1,414 spread on the same certified stone. Queensmith lists it at £1,562. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720537907
Dimensions5.88 × 5.85 × 4.03 mm
L/W Ratio1.01
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
5.88 mm5.85 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720537907
Side View
Table 68.0%Crown 44.2°Girdle: MED-STKPavilion 37.1°Culet: NoneDepth 68.9%

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: Nov 2
Current: £336 GBP|Low: £147 GBP|High: £868 GBP|Avg: £408 GBP|+4.6%
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
November 3, 2026
Retailer 9£148 GBP
Retailer 2£164 GBP
Retailer 13£170 GBP
Retailer 11£182 GBP
Retailer 4£247 GBP
Retailer 10£314 GBP
Retailer 1£336 GBP
Retailer 5£356 GBP
Retailer 8£447 GBP
Retailer 12£584 GBP
Retailer 7£592 GBP
Retailer 3£624 GBP
Retailer 6£857 GBP

41 data points across 13 retailers

15 retailers£148 GBP to £1,562 GBP

A
Cheapest Retailer
-
£148 GBP
$198 USD
A
Retailer 2
-
£164 GBP
$220 USD
View
Final sale: no returns
A
Retailer 3
-
£170 GBP
$228 USD
View
A
Retailer 4
-
£182 GBP
$244 USD
View
Retailer 5
-
£183 GBP
$246 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£247 GBP
$332 USD
View
A
Retailer 7
-
£314 GBP
ZAR 6,799 ZAR
View
A
Retailer 8
-
£336 GBP
View
A
Retailer 9
-
£356 GBP
$478 USD
View
B+
Retailer 10
-
£447 GBP
A$923 AUD
View
B+
Retailer 11
-
£584 GBP
$784 USD
View
B+
Retailer 12
-
£592 GBP
$794 USD
View
B
Retailer 13
-
£624 GBP
$837 USD
View
B
Retailer 14
-
£857 GBP
View
Most Expensive
B
Queensmith
LG720537907 · Oct 27
£1,562 GBP
View
14 more retailers have this diamond
Prices start from £148 GBPSave up to £1,414 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
1.23ct Princess
£148 GBP