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Round|Natural|GIA

1.26ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6445671090

Certificate GIA 6445671090

Diamond specifications and retailer prices

From $3,452 NZD
HK$15,200 HKD
As of November 1, 2026
Save $6,184 NZD (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,636 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.26ct natural round diamond

This 1.26ct 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 6445671090. Listed at 13 retailers as of October 30, 2026, with prices from $3,452 to $9,636, a $6,184 spread on the same certified stone. NZ Jewellers lists it at $9,636. 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

1.26
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6445671090
Dimensions6.87 × 6.83 × 4.31 mm
L/W Ratio1.01
Top View
6.87 mm6.83 mm1.26 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6445671090
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.9%

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: $9,636 NZD|Low: $3,407 NZD|High: $11,134 NZD|Avg: $5,593 NZD|-13.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 8$3,452 NZD
Retailer 9$3,664 NZD
Retailer 4$3,854 NZD
Retailer 13$4,134 NZD
Retailer 10$4,175 NZD
Retailer 11$4,175 NZD
Retailer 3$4,368 NZD
Retailer 12$4,817 NZD
Retailer 6$4,856 NZD
Retailer 2$5,196 NZD
Retailer 5$6,182 NZD
Retailer 7$8,076 NZD
NZ Jewellers$9,636 NZD

40 data points across 13 retailers

13 retailers$3,452 NZD to $9,636 NZD

A
Cheapest Retailer
-
$3,452 NZD
HK$15,200 HKD
A
Retailer 2
-
$3,664 NZD
$2,065 USD
View
A
Retailer 3
-
$3,854 NZD
$2,172 USD
View
Final sale: no returns
A
Retailer 4
-
$4,134 NZD
$2,330 USD
View
B+
Retailer 5
-
$4,175 NZD
$2,353 USD
View
B+
Retailer 6
-
$4,175 NZD
$2,353 USD
View
B+
Retailer 7
-
$4,368 NZD
$2,462 USD
View
B+
Retailer 8
-
$4,817 NZD
$2,715 USD
View
B+
Retailer 9
-
$4,856 NZD
£2,155 GBP
View
B+
Retailer 10
-
$5,196 NZD
€2,789 EUR
View
Retailer 11
-
$6,182 NZD
$3,484 USD
View
Price last confirmed 20 days ago
B
Retailer 12
-
$8,076 NZD
£3,584 GBP
View
Most Expensive
C
NZ Jewellers
a1949a10-952a-466a-aab5-f5bd6a4c9967 · Oct 30
$9,636 NZD
$5,431 USD
View
12 more retailers have this diamond
Prices start from $3,452 NZDSave up to $6,184 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
1.26ct Round
$3,452 NZD