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Radiant|Natural|GIA

1.23ct J SI1 Radiant Natural Diamond

VG • J/SI1 • GIA 5221183892

Certificate GIA 5221183892

Diamond specifications and retailer prices

From €3,182 EUR
As of November 5, 2026
Save €2,224 EUR (41%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €5,406 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct natural radiant diamond

This 1.23ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5221183892. Listed at 7 retailers as of November 4, 2026, with prices from €3,182 to €5,406, a €2,224 spread on the same certified stone. MOH London lists it at €5,406. 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

1.23
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5221183892
Dimensions6.30 × 5.59 × 4.00 mm
L/W Ratio1.13
Top View
6.30 mm5.59 mm1.23 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 5221183892
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 71.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €5,406 EUR|Low: €3,182 EUR|High: €5,486 EUR|Avg: €3,755 EUR|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 4€3,182 EUR
Retailer 5€3,359 EUR
Retailer 6€3,359 EUR
Retailer 2€3,386 EUR
Retailer 3€3,773 EUR
MOH London€5,406 EUR

43 data points across 6 retailers

7 retailers€3,182 EUR to €5,406 EUR

B
Cheapest Retailer
-
€3,182 EUR
B
Retailer 2
-
€3,359 EUR
View
B
Retailer 3
-
€3,359 EUR
View
B
Retailer 4
-
€3,386 EUR
View
B
Retailer 5
-
€3,475 EUR
View
B
Retailer 6
-
€3,773 EUR
View
Most Expensive
C
MOH London
79FB9A471 · Nov 4
€5,406 EUR
£4,753 GBP
View
6 more retailers have this diamond
Prices start from €3,182 EURSave up to €2,224 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
1.23ct Radiant
€3,182 EUR