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Princess|Lab Grown|IGI

1.23ct D VS1 Princess Lab Grown Diamond

ID • D/VS1 • IGI LG739579309

Shape and cutting style on the report: Princess cut

Certificate IGI LG739579309

Diamond specifications and retailer prices

From £166 GBP
$221 USD
As of October 30, 2026
Save £781 GBP (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £947 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 LG739579309 or 739579309. Listed at 22 retailers as of October 30, 2026, with prices from £166 to £947, a £781 spread on the same certified stone. Reve Diamonds lists it at £947. 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 angle45°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739579309
Dimensions5.83 × 5.83 × 5.84 mm
L/W Ratio1.00
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
5.83 mm5.83 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739579309
Side View
Table 67.0%Crown 45°Girdle: MediumPavilion 37.3°Culet: NoneDepth 70.8%

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: £683 GBP|Low: £164 GBP|High: £947 GBP|Avg: £470 GBP|-8.1%
Retailer 1
Retailer 2
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Retailer 19
Reve Diamonds
October 30, 2026
Retailer 9£166 GBP
Retailer 18£185 GBP
Retailer 19£193 GBP
Retailer 6£206 GBP
Retailer 11£206 GBP
Retailer 7£351 GBP
Retailer 16£354 GBP
Retailer 2£365 GBP
Retailer 12£383 GBP
Retailer 4£388 GBP
Retailer 13£390 GBP
Retailer 17£503 GBP
Retailer 3£541 GBP
Retailer 5£564 GBP
Retailer 15£634 GBP
Retailer 8£662 GBP
Retailer 1£683 GBP
Retailer 10£702 GBP
Retailer 14£830 GBP
Reve Diamonds£947 GBP

37 data points across 20 retailers

22 retailers£166 GBP to £947 GBP

A
Cheapest Retailer
-
£166 GBP
$221 USD
A
Retailer 2
-
£185 GBP
$246 USD
View
Final sale: no returns
A
Retailer 3
-
£193 GBP
$257 USD
View
Retailer 4
-
£201 GBP
$268 USD
View
Price last confirmed 38 days ago
A
Retailer 5
-
£206 GBP
$274 USD
View
A
Retailer 6
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£206 GBP
$274 USD
View
A
Retailer 7
-
£351 GBP
$468 USD
View
A
Retailer 8
-
£354 GBP
ZAR 7,613 ZAR
View
A
Retailer 9
-
£365 GBP
$486 USD
View
B+
Retailer 10
-
£383 GBP
View
B+
Retailer 11
-
£388 GBP
$517 USD
View
B+
Retailer 12
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£390 GBP
€494 EUR
View
B+
Retailer 13
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£503 GBP
A$1,031 AUD
View
Retailer 14
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£541 GBP
$720 USD
View
Price last confirmed 12 days ago
B+
Retailer 15
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£564 GBP
$751 USD
View
B+
Retailer 16
-
£634 GBP
A$1,298 AUD
View
B
Retailer 17
-
£662 GBP
$882 USD
View
B
Retailer 18
-
£683 GBP
$910 USD
View
B
Retailer 19
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£702 GBP
$934 USD
View
B
Retailer 20
-
£744 GBP
$991 USD
View
B
Retailer 21
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£830 GBP
View
Most Expensive
B
Reve Diamonds
74038D9E4 · Oct 30
£947 GBP
$1,261 USD
View
21 more retailers have this diamond
Prices start from £166 GBPSave up to £781 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
£166 GBP