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Round|Lab Grown|GIA

1.21ct D VS1 Round Lab Grown Diamond

EX • D/VS1 • GIA 6502204729

Certificate GIA 6502204729

Diamond specifications and retailer prices

From £155 GBP
$208 USD
As of October 30, 2026
Save £196 GBP (56%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £533 GBP at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 6502204729. Listed at 7 retailers as of October 26, 2026, with a 126% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginLab Grown
Grading LabGIA
CertificateGIA 6502204729
Dimensions6.85 × 6.82 × 4.21 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Culet sizeNone
Key to symbols
Growth Remnant
Top View
6.85 mm6.82 mm1.21 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6502204729
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £533 GBP|Low: £134 GBP|High: £1,942 GBP|Avg: £502 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 4£134 GBP
Retailer 2£155 GBP
Retailer 3£166 GBP
Retailer 5£166 GBP
Retailer 7£281 GBP
Retailer 6£353 GBP
NZ Jewellers£533 GBP
Retailer 9£560 GBP
Retailer 8£1,942 GBP

21 data points across 9 retailers

7 retailers£155 GBP to £351 GBP

Retailer 1
-
£134 GBP
$179 USD
Price last confirmed 12 days ago
A
Retailer 2
-
£155 GBP
$208 USD
View
Retailer 3
-
£166 GBP
$222 USD
View
Price last confirmed 11 days ago
A
Retailer 4
-
£166 GBP
$222 USD
View
B+
Retailer 5
-
£351 GBP
$470 USD
View
Retailer 6
-
£353 GBP
$473 USD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
aa40d882-90da-45ea-9120-3b927b837bc8 · Oct 18
£533 GBP
$714 USD
View
Price last confirmed 12 days ago
6 more retailers have this diamond
Prices start from £155 GBPSave up to £196 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
1.21ct Round
£155 GBP