Radiant|Natural|GIA

0.51ct J I1 Radiant Natural Diamond

EX • J/I1 • GIA 1445790636

Certificate GIA 1445790636

Diamond specifications and retailer prices

From €367 EUR
HK$3,200 HKD
As of November 1, 2026
Save €254 EUR (41%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €620 EUR at DreamStone · As of October 31, 2026
View at DreamStone

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1445790636. Listed at 8 retailers as of October 31, 2026, with prices from €367 to €620, a €254 spread on the same certified stone. DreamStone lists it at €620. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
J
Color
I1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1445790636
Dimensions5.03 × 4.01 × 2.87 mm
L/W Ratio1.25
Key to symbols
Feather
Top View
5.03 mm4.01 mm0.51 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1445790636
Side View
Table 70.0%CrownGirdlePavilionCulet: NoneDepth 71.5%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: €620 EUR|Low: €367 EUR|High: €1,675 EUR|Avg: €624 EUR
DreamStone
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10€367 EUR
Retailer 8€437 EUR
Retailer 4€471 EUR
Retailer 5€471 EUR
Retailer 6€484 EUR
Retailer 9€504 EUR
Retailer 11€589 EUR
Retailer 2€593 EUR
DreamStone€620 EUR
Retailer 3€657 EUR
Retailer 7€1,675 EUR

20 data points across 11 retailers

8 retailers€367 EUR to €620 EUR

A
Cheapest Retailer
-
€367 EUR
HK$3,200 HKD
B+
Retailer 2
-
€437 EUR
$488 USD
View
B
Retailer 3
-
€471 EUR
$526 USD
View
B
Retailer 4
-
€471 EUR
$526 USD
View
B
Retailer 5
-
€504 EUR
$563 USD
View
B
Retailer 6
-
€593 EUR
View
Most Expensive
B
DreamStone
67d88b69eac682738cabfbbb · Oct 31
€620 EUR
$693 USD
View
6 more retailers have this diamond
Prices start from €367 EURSave up to €254 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.

A
0.51ct Radiant
€367 EUR