Radiant|Natural|GIA

1.21ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 6375192673

Certificate GIA 6375192673

Diamond specifications and retailer prices

From €2,218 EUR
As of November 4, 2026
Save €2,605 EUR (54%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,823 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6375192673. Listed at 10 retailers as of November 4, 2026, with prices from €2,218 to €4,823, a €2,605 spread on the same certified stone. MOH London lists it at €4,823. 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
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6375192673
Dimensions6.36 × 5.19 × 3.64 mm
L/W Ratio1.23
Top View
6.36 mm5.19 mm1.21 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6375192673
Side View
Table 65.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 70.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: €4,823 EUR|Low: €2,218 EUR|High: €4,893 EUR|Avg: €2,999 EUR|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 7€2,218 EUR
Retailer 6€2,302 EUR
Retailer 4€2,382 EUR
Retailer 5€2,828 EUR
Retailer 2€2,992 EUR
Retailer 3€3,367 EUR
MOH London€4,823 EUR

43 data points across 7 retailers

10 retailers€2,218 EUR to €4,823 EUR

B
Cheapest Retailer
-
€2,218 EUR
B
Retailer 2
-
€2,302 EUR
View
B
Retailer 3
-
€2,317 EUR
View
B
Retailer 4
-
€2,372 EUR
View
Retailer 5
-
€2,382 EUR
View
Price last confirmed 10 days ago
B
Retailer 6
-
€2,828 EUR
View
B
Retailer 7
-
€2,992 EUR
View
Retailer 8
-
€3,354 EUR
View
Price last confirmed 15 days ago
B
Retailer 9
-
€3,367 EUR
View
Most Expensive
B
MOH London
A7140E27C · Nov 4
€4,823 EUR
£4,240 GBP
View
9 more retailers have this diamond
Prices start from €2,218 EURSave up to €2,605 EUR

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
1.21ct Radiant
€2,218 EUR