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Round|Lab Grown|GIA

4.29ct D IF Round Lab Grown Diamond

EX • D/IF

Diamond specifications and retailer prices

From £3,595 GBP
As of October 30, 2026
Save £8,172 GBP (69%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £11,767 GBP at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 4.29ct lab-grown round diamond

This 4.29ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA. Listed at 2 retailers as of October 29, 2026, with prices from £3,595 to £11,767, a £8,172 spread on the same certified stone. Blue Nile lists it at £11,767. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.29
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
Dimensions10.44 × 10.50 × 6.38 mm
L/W Ratio1.01
Top View
10.44 mm10.50 mm4.29 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 58.0%CrownGirdle: Medium to Slightly ThickPavilionCulet: NoneDepth 60.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £11,767 GBP|Low: £3,588 GBP|High: £20,519 GBP|Avg: £7,981 GBP|+9.1%
Blue Nile
Retailer 2
October 30, 2026
Retailer 2£3,595 GBP
Blue Nile£11,767 GBP

32 data points across 2 retailers

2 retailers£3,595 GBP to £11,767 GBP

A
Cheapest Retailer
-
£3,595 GBP
Most Expensive
B
Blue Nile
27422333 · Oct 29
£11,767 GBP
$15,767 USD
View
1 more retailer has this diamond
Prices start from £3,595 GBPSave up to £8,172 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
4.29ct Round
£3,595 GBP