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Round|Lab Grown|GIA

5.21ct H VS1 Round Lab Grown Diamond

VG • H/VS1 • GIA 5221403051

Certificate GIA 5221403051

Diamond specifications and retailer prices

From £1,701 GBP
$2,279 USD
As of October 31, 2026
Save £4,565 GBP (73%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £8,116 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.21ct lab-grown round diamond

This 5.21ct lab-grown round sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by GIA 5221403051. Listed at 15 retailers as of October 29, 2026, with a 268% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.21
Carat
H
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 5221403051
Dimensions11.07 × 11.02 × 6.90 mm
L/W Ratio1.00
Top View
11.07 mm11.02 mm5.21 ctH / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5221403051
Side View
Table 57.0%CrownGirdle: ThickPavilionCulet: NoneDepth 62.0%

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: £6,266 GBP|Low: £1,456 GBP|High: £8,116 GBP|Avg: £3,078 GBP|+0.5%
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
Taylor and Hart
October 29, 2026
Retailer 5£1,701 GBP
Retailer 11£1,818 GBP
Retailer 2£1,978 GBP
Retailer 14£2,036 GBP
Retailer 7£2,052 GBP
Retailer 12£2,109 GBP
Retailer 10£2,232 GBP
Retailer 15£2,293 GBP
Retailer 8£2,373 GBP
Retailer 6£2,657 GBP
Retailer 9£3,162 GBP
Retailer 3£3,200 GBP
Retailer 13£3,288 GBP
Retailer 4£4,015 GBP
Retailer 1£6,266 GBP
Taylor and Hart£8,116 GBP

19 data points across 16 retailers

15 retailers£1,701 GBP to £6,266 GBP

B+
Cheapest Retailer
-
£1,701 GBP
$2,279 USD
B+
Retailer 2
-
£1,818 GBP
$2,436 USD
View
B
Retailer 3
-
£1,978 GBP
$2,650 USD
View
B
Retailer 4
-
£2,036 GBP
$2,728 USD
View
Final sale: no returns
Retailer 5
-
£2,109 GBP
$2,826 USD
View
Price last confirmed 18 days ago
B
Retailer 6
-
£2,109 GBP
$2,826 USD
View
B
Retailer 7
-
£2,232 GBP
$2,990 USD
View
B
Retailer 8
-
£2,293 GBP
$3,073 USD
View
Retailer 9
-
£2,373 GBP
$3,180 USD
View
Price last confirmed 10 days ago
B
Retailer 10
-
£3,162 GBP
$4,237 USD
View
B
Retailer 11
-
£3,200 GBP
$4,287 USD
View
B
Retailer 12
-
£3,288 GBP
$4,406 USD
View
B
Retailer 13
-
£4,015 GBP
View
B
Retailer 14
-
£6,266 GBP
View
Most Expensive
Taylor and Hart
E9G23LM · Oct 30
£8,116 GBP
$10,875 USD
View
Price under review
14 more retailers have this diamond
Prices start from £1,701 GBPSave up to £4,565 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+
5.21ct Round
£1,701 GBP