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Round|Natural|GIA

1.25ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2418689032

Certificate GIA 2418689032

Diamond specifications and retailer prices

From $5,081 NZD
$2,859 USD
As of November 1, 2026
Save $5,830 NZD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $10,911 NZD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2418689032. Listed at 15 retailers as of November 1, 2026, with prices from $5,081 to $10,911, a $5,830 spread on the same certified stone. NZ Jewellers lists it at $10,911. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.25
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2418689032
Dimensions6.90 × 6.85 × 4.23 mm
L/W Ratio1.01
Top View
6.90 mm6.85 mm1.25 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2418689032
Side View
Table 61.0%Crown 35°Girdle: THN-STKPavilion 41°Culet: NoneDepth 61.5%

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: Nov 1
Current: $10,911 NZD|Low: $4,365 NZD|High: $10,911 NZD|Avg: $6,995 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 6$5,081 NZD
Retailer 7$5,238 NZD
Retailer 9$5,673 NZD
Retailer 11$5,673 NZD
Retailer 8$5,892 NZD
Retailer 2$6,505 NZD
Retailer 10$6,548 NZD
Retailer 4$6,735 NZD
Retailer 3$7,095 NZD
Retailer 5$10,473 NZD
NZ Jewellers$10,911 NZD

41 data points across 11 retailers

15 retailers$5,081 NZD to $10,911 NZD

B+
Cheapest Retailer
-
$5,081 NZD
$2,859 USD
B+
Retailer 2
-
$5,238 NZD
$2,947 USD
View
Final sale: no returns
B+
Retailer 3
-
$5,328 NZD
$2,998 USD
View
B
Retailer 4
-
$5,673 NZD
$3,192 USD
View
B
Retailer 5
-
$5,673 NZD
$3,192 USD
View
B
Retailer 6
-
$5,801 NZD
CA$4,533 CAD
View
B
Retailer 7
-
$5,892 NZD
$3,315 USD
View
B+
Retailer 8
-
$6,165 NZD
$3,469 USD
View
B+
Retailer 9
-
$6,505 NZD
£2,882 GBP
View
B
Retailer 10
-
$6,548 NZD
$3,684 USD
View
B
Retailer 11
-
$6,735 NZD
€3,609 EUR
View
Retailer 12
-
$7,095 NZD
$3,992 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
$7,211 NZD
$4,057 USD
View
B
Retailer 14
-
$10,473 NZD
£4,640 GBP
View
Most Expensive
B
NZ Jewellers
433753fe-0b77-4813-a979-c272d9e7e061 · Nov 2
$10,911 NZD
$6,139 USD
View
14 more retailers have this diamond
Prices start from $5,081 NZDSave up to $5,830 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+
1.25ct Round
$5,081 NZD