Princess|Lab Grown|IGI

1.21ct D IF Princess Lab Grown Diamond

ID • D/IF • IGI LG675571773

Shape and cutting style on the report: Princess cut

Certificate IGI LG675571773

Diamond specifications and retailer prices

From £328 GBP
$439 USD
As of October 30, 2026
Save £1,338 GBP (80%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,666 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 1.21ct lab-grown princess diamond

This 1.21ct lab-grown princess sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG675571773 or 675571773. Listed at 22 retailers as of October 30, 2026, with prices from £328 to £1,666, a £1,338 spread on the same certified stone. With Clarity lists it at £1,666. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.1°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG675571773
Dimensions5.89 × 5.71 × 3.95 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.89 mm5.71 mm1.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG675571773
Side View
Table 67.0%Crown 46.1°Girdle: Slightly ThickPavilion 36.6°Culet: NoneDepth 69.2%

Caratlytics Score

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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: Oct 30
Current: £1,493 GBP|Low: £249 GBP|High: £1,746 GBP|Avg: £845 GBP|+17.4%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
With Clarity
November 1, 2026
Retailer 9£328 GBP
Retailer 10£366 GBP
Retailer 21£367 GBP
Retailer 4£406 GBP
Retailer 11£406 GBP
Retailer 12£418 GBP
Retailer 2£497 GBP
Retailer 20£515 GBP
Retailer 5£601 GBP
Retailer 15£671 GBP
Retailer 19£698 GBP
Retailer 18£752 GBP
Retailer 17£990 GBP
Retailer 6£1,044 GBP
Retailer 14£1,089 GBP
Retailer 3£1,302 GBP
Retailer 8£1,306 GBP
Retailer 13£1,331 GBP
Retailer 7£1,460 GBP
Retailer 1£1,493 GBP
Retailer 16£1,590 GBP
With Clarity£1,666 GBP

30 data points across 22 retailers

22 retailers£328 GBP to £1,666 GBP

A
Cheapest Retailer
-
£328 GBP
$439 USD
A
Retailer 2
-
£366 GBP
$491 USD
View
Final sale: no returns
A
Retailer 3
-
£367 GBP
$492 USD
View
Retailer 4
-
£406 GBP
$544 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
£406 GBP
$544 USD
View
A
Retailer 6
-
£418 GBP
View
A
Retailer 7
-
£497 GBP
$666 USD
View
A
Retailer 8
-
£515 GBP
$690 USD
View
B+
Retailer 9
-
£601 GBP
$805 USD
View
B+
Retailer 10
-
£671 GBP
View
B+
Retailer 11
-
£698 GBP
ZAR 15,112 ZAR
View
B+
Retailer 12
-
£752 GBP
€960 EUR
View
B+
Retailer 13
-
£990 GBP
A$2,041 AUD
View
B
Retailer 14
-
£1,044 GBP
$1,399 USD
View
Retailer 15
-
£1,089 GBP
A$2,244 AUD
View
Price last confirmed 32 days ago
Retailer 16
-
£1,302 GBP
$1,745 USD
View
Price last confirmed 11 days ago
B
Retailer 17
-
£1,306 GBP
$1,750 USD
View
B
Retailer 18
-
£1,331 GBP
$1,783 USD
View
B
Retailer 19
-
£1,460 GBP
$1,956 USD
View
B
Retailer 20
-
£1,493 GBP
View
B
Retailer 21
-
£1,590 GBP
$2,130 USD
View
Most Expensive
B
With Clarity
675571773 · Oct 31
£1,666 GBP
$2,232 USD
View
21 more retailers have this diamond
Prices start from £328 GBPSave up to £1,338 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
1.21ct Princess
£328 GBP