Round|Natural|GIA

0.25ct J I1 Round Natural Diamond

VG • J/I1 • GIA 1259515559

Certificate GIA 1259515559

Diamond specifications and retailer prices

From $314 NZD
$177 USD
As of October 31, 2026
Save $351 NZD (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,419 NZD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 0.25ct natural round diamond

This 0.25ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and I1 clarity (included), with a very-good cut grade and certified by GIA 1259515559. Listed at 9 retailers as of October 31, 2026, with a 112% 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

0.25
Carat
J
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1259515559
Dimensions3.96 × 4.00 × 2.51 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
3.96 mm4.00 mm0.25 ctJ / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1259515559
Side View
Table 58.0%Crown 36.5°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $665 NZD|Low: $305 NZD|High: $814 NZD|Avg: $568 NZD|+4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 3$308 NZD
Retailer 2$337 NZD
Retailer 1$665 NZD
Retailer 4$814 NZD

16 data points across 4 retailers

9 retailers$314 NZD to $665 NZD

Retailer 1
-
$314 NZD
$177 USD
Price last confirmed 25 days ago
B+
Retailer 2
-
$314 NZD
$177 USD
View
B+
Retailer 3
-
$337 NZD
$190 USD
View
Retailer 4
-
$350 NZD
$197 USD
View
Price last confirmed 34 days ago
Retailer 5
-
$422 NZD
$238 USD
View
Price last confirmed 24 days ago
B+
Retailer 6
-
$422 NZD
$238 USD
View
B
Retailer 7
-
$665 NZD
€357 EUR
View
Retailer 8
-
$1,419 NZD
$800 USD
View
Price under review
Most Expensive
NZ Jewellers
840ad264-dd8b-48f3-9a23-b0194ca0f080 · Nov 2
$1,419 NZD
$800 USD
View
Price under review
8 more retailers have this diamond
Prices start from $314 NZDSave up to $351 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.

B+
0.25ct Round
$314 NZD