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Radiant|Lab Grown|GIA

1.21ct G VS1 Radiant Lab Grown Diamond

GD • G/VS1 • GIA 1508849167

Certificate GIA 1508849167

Diamond specifications and retailer prices

From £226 GBP
As of November 4, 2026
Save £785 GBP (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,114 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1508849167. Listed at 16 retailers as of November 4, 2026, with a 348% 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

1.21
Carat
G
Colour
VS1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 1508849167
Dimensions7.68 × 5.28 × 3.49 mm
L/W Ratio1.45
Girdle conditionPolished
Cert comments
This is a man-made diamond produced by CVD (Chemical Vapor Deposition) growth process and has evidence of post-growth treatments to change the color.
Key to symbols
Growth Remnant
Top View
7.68 mm5.28 mm1.21 ctG / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1508849167
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.2%

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: Nov 4
Current: £1,114 GBP|Low: £226 GBP|High: £1,129 GBP|Avg: £563 GBP|+0.4%
MOH London
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
November 5, 2026
Retailer 4£226 GBP
Retailer 3£315 GBP
Retailer 12£316 GBP
Retailer 7£337 GBP
Retailer 13£361 GBP
Retailer 6£406 GBP
Retailer 11£433 GBP
Retailer 2£441 GBP
Retailer 9£476 GBP
Retailer 8£680 GBP
Retailer 10£914 GBP
Retailer 14£932 GBP
Retailer 5£1,011 GBP
MOH London£1,114 GBP

17 data points across 14 retailers

16 retailers£226 GBP to £1,011 GBP

A
Cheapest Retailer
-
£226 GBP
Final sale: no returns
B+
Retailer 2
-
£315 GBP
View
A
Retailer 3
-
£316 GBP
View
A
Retailer 4
-
£337 GBP
View
B+
Retailer 5
-
£361 GBP
View
B+
Retailer 6
-
£406 GBP
View
B+
Retailer 7
-
£433 GBP
View
B+
Retailer 8
-
£441 GBP
View
B+
Retailer 9
-
£476 GBP
View
B
Retailer 10
-
£680 GBP
View
B
Retailer 11
-
£801 GBP
View
B
Retailer 12
-
£889 GBP
View
B
Retailer 13
-
£914 GBP
View
B
Retailer 14
-
£932 GBP
View
B
Retailer 15
-
£1,011 GBP
View
Most Expensive
MOH London
1508849167 · Oct 29
£1,114 GBP
View
Price last confirmed 7 days ago
15 more retailers have this diamond
Prices start from £226 GBPSave up to £785 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 Radiant
£226 GBP