Oval|Lab Grown|GIA

4.21ct D IF Oval Lab Grown Diamond

ID • D/IF • GIA 3535080773

Certificate GIA 3535080773

Diamond specifications and retailer prices

From £5,843 GBP
$7,829 USD
As of October 29, 2026
Save £9,576 GBP (62%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £15,419 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.21ct lab-grown oval diamond

This 4.21ct lab-grown oval 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 stated by the retailer rather than the lab and certified by GIA 3535080773. Listed at 6 retailers as of October 29, 2026, with prices from £5,843 to £15,419, a £9,576 spread on the same certified stone. Brilliant Earth lists it at £15,419. 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

4.21
Carat
D
Colour
IF
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 3535080773
Dimensions12.96 × 9.05 × 5.67 mm
L/W Ratio1.43
Top View
12.96 mm9.05 mm4.21 ctD / IF
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 3535080773
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.7%

Caratlytics Score

How it works →
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 29
Current: £15,419 GBP|Low: £5,154 GBP|High: £15,897 GBP|Avg: £8,200 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 11, 2026
Retailer 6£5,154 GBP
Retailer 2£5,843 GBP
Retailer 5£6,077 GBP
Retailer 3£6,778 GBP
Retailer 4£8,414 GBP
Brilliant Earth£15,419 GBP

5 data points across 6 retailers

6 retailers£5,843 GBP to £15,419 GBP

A
Cheapest Retailer
-
£5,843 GBP
$7,829 USD
B+
Retailer 2
-
£6,077 GBP
$8,142 USD
View
Retailer 3
-
£6,778 GBP
$9,082 USD
View
Price last confirmed 15 days ago
B+
Retailer 4
-
£6,778 GBP
$9,082 USD
View
B+
Retailer 5
-
£8,414 GBP
$11,274 USD
View
Most Expensive
B
Brilliant Earth
16513769A · Oct 31
£15,419 GBP
$20,660 USD
View
5 more retailers have this diamond
Prices start from £5,843 GBPSave up to £9,576 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
4.21ct Oval
£5,843 GBP