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Radiant|Natural|GIA

0.51ct J I1 Radiant Natural Diamond

EX • J/I1 • GIA 1445790636

Certificate GIA 1445790636

Diamond specifications and retailer prices

From $728 NZD
HK$3,200 HKD
As of November 1, 2026
Save $504 NZD (41%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,232 NZD 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 $728 to $1,232, a $504 spread on the same certified stone. DreamStone lists it at $1,232. 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
Colour
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: $1,232 NZD|Low: $728 NZD|High: $3,325 NZD|Avg: $1,240 NZD
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$728 NZD
Retailer 8$867 NZD
Retailer 4$935 NZD
Retailer 5$935 NZD
Retailer 6$961 NZD
Retailer 9$1,001 NZD
Retailer 11$1,169 NZD
Retailer 2$1,178 NZD
DreamStone$1,232 NZD
Retailer 3$1,304 NZD
Retailer 7$3,325 NZD

20 data points across 11 retailers

8 retailers$728 NZD to $1,232 NZD

A
Cheapest Retailer
-
$728 NZD
HK$3,200 HKD
B+
Retailer 2
-
$867 NZD
$488 USD
View
B
Retailer 3
-
$935 NZD
$526 USD
View
B
Retailer 4
-
$935 NZD
$526 USD
View
B
Retailer 5
-
$1,001 NZD
$563 USD
View
B
Retailer 6
-
$1,178 NZD
€631 EUR
View
Most Expensive
B
DreamStone
67d88b69eac682738cabfbbb · Oct 31
$1,232 NZD
$693 USD
View
6 more retailers have this diamond
Prices start from $728 NZDSave up to $504 NZD

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
$728 NZD