Oval|Lab Grown|GCAL

4.21ct D IF Oval Lab Grown Diamond

ID • D/IF • GCAL 360736080

Shape and cutting style on the report: Oval brilliant

Certificate GCAL 360736080

Diamond specifications and retailer prices

From £5,636 GBP
$7,551 USD
As of October 31, 2026
Save £16,113 GBP (74%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £25,204 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

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 and certified by GCAL 360736080. Listed at 16 retailers as of October 30, 2026, with a 286% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 360736080
Dimensions13.17 × 9.22 × 5.65 mm
L/W Ratio1.43
Culet sizeNone
Top View
13.17 mm9.22 mm4.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 360736080
Side View
Table 59.0%Crown 32.4°Girdle: STK-STKPavilion 40.6°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £9,128 GBP|Low: £5,636 GBP|High: £39,160 GBP|Avg: £13,737 GBP|-0.8%
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
Taylor and Hart
October 31, 2026
Retailer 14£5,636 GBP
Retailer 11£6,275 GBP
Retailer 10£6,526 GBP
Retailer 5£7,027 GBP
Retailer 12£7,279 GBP
Retailer 13£7,992 GBP
Retailer 9£8,097 GBP
Retailer 6£9,036 GBP
Retailer 1£9,128 GBP
Retailer 8£14,419 GBP
Retailer 2£21,748 GBP
Retailer 4£21,748 GBP
Retailer 7£22,285 GBP
Taylor and Hart£25,204 GBP
Retailer 3£39,160 GBP

44 data points across 15 retailers

16 retailers£5,636 GBP to £21,748 GBP

B+
Cheapest Retailer
-
£5,636 GBP
$7,551 USD
B+
Retailer 2
-
£6,275 GBP
$8,408 USD
View
B+
Retailer 3
-
£6,526 GBP
$8,744 USD
View
B+
Retailer 4
-
£7,027 GBP
$9,416 USD
View
Final sale: no returns
Retailer 5
-
£7,279 GBP
$9,753 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
£7,279 GBP
$9,753 USD
View
B+
Retailer 7
-
£8,097 GBP
$10,849 USD
View
B+
Retailer 8
-
£9,036 GBP
$12,107 USD
View
B+
Retailer 9
-
£9,128 GBP
View
B
Retailer 10
-
£14,419 GBP
View
B
Retailer 11
-
£14,944 GBP
$20,023 USD
View
B
Retailer 12
-
£21,748 GBP
$29,140 USD
View
B
Retailer 13
-
£21,748 GBP
$29,140 USD
View
Retailer 14
-
£22,285 GBP
$29,860 USD
View
Price under review
Most Expensive
Taylor and Hart
MU038XP · Oct 31
£25,204 GBP
$33,770 USD
View
Price under review
14 more retailers have this diamond
Prices start from £5,636 GBPSave up to £16,113 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.

B+
4.21ct Oval
£5,636 GBP