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Round|Natural|GIA

1.00ct K I1 Round Natural Diamond

EX • K/I1 • GIA 5413531239

Certificate GIA 5413531239

Diamond specifications and retailer prices

From $3,255 NZD
As of November 6, 2026
Save $5,817 NZD (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $9,072 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and I1 clarity (included), with a top-tier cut grade and certified by GIA 5413531239. Listed at 12 retailers as of November 5, 2026, with prices from $3,255 to $9,072, a $5,817 spread on the same certified stone. NZ Jewellers lists it at $9,072. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
K
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 5413531239
Dimensions6.43 × 6.38 × 3.98 mm
L/W Ratio1.01
Top View
6.43 mm6.38 mm1.00 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5413531239
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $9,072 NZD|Low: $3,232 NZD|High: $9,072 NZD|Avg: $4,708 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 6$3,255 NZD
Retailer 5$3,451 NZD
Retailer 3$3,551 NZD
Retailer 8$3,556 NZD
Retailer 9$3,931 NZD
Retailer 11$3,931 NZD
Retailer 7$4,113 NZD
Retailer 10$4,536 NZD
Retailer 12$5,162 NZD
Retailer 2$5,383 NZD
Retailer 4$6,201 NZD
NZ Jewellers$9,072 NZD

24 data points across 12 retailers

12 retailers$3,255 NZD to $9,072 NZD

B
Cheapest Retailer
-
$3,255 NZD
B
Retailer 2
-
$3,451 NZD
View
B
Retailer 3
-
$3,556 NZD
View
Retailer 4
-
$3,931 NZD
View
Price last confirmed 56 days ago
Retailer 5
-
$3,931 NZD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$3,931 NZD
View
B
Retailer 7
-
$4,113 NZD
View
Retailer 8
-
$4,536 NZD
View
Price last confirmed 60 days ago
B
Retailer 9
-
$4,536 NZD
View
B
Retailer 10
-
$5,383 NZD
View
Retailer 11
-
$9,072 NZD
View
Price last confirmed 57 days ago
Most Expensive
C
NZ Jewellers
f18f25e6-21ad-4998-b829-b65bdbbf91ca · Nov 5
$9,072 NZD
$5,100 USD
View
11 more retailers have this diamond
Prices start from $3,255 NZDSave up to $5,817 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
1.00ct Round
$3,255 NZD