Princess|Lab Grown|IGI

1.21ct D IF Princess Lab Grown Diamond

D/IF

Diamond specifications and retailer prices

From £410 GBP
$550 USD
As of October 30, 2026
1 retailer carries this diamond
Only listing: £410 GBP at Carbon Sparkle
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Carbon Sparkle

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) and certified by IGI. Listed at a single retailer as of October 30, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
D
Colour
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions5.71 × 5.68 × 4.19 mm
L/W Ratio1.01
Top View
5.71 mm5.68 mm1.21 ctD / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 69.0%CrownGirdle: MediumPavilionCulet: NoneDepth 73.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: £410 GBP|Low: £333 GBP|High: £1,478 GBP|Avg: £629 GBP
Carbon Sparkle
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 6£333 GBP
Carbon Sparkle£410 GBP
Retailer 3£460 GBP
Retailer 4£509 GBP
Retailer 5£579 GBP
Retailer 2£1,478 GBP

12 data points across 6 retailers

1 retailer

B+
Carbon Sparkle
2ed96731-0572-4cef-932f-9bf6d6265c72 · Oct 30
£410 GBP
$550 USD
View

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.

B+
1.21ct Princess
£410 GBP