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Round|Natural|GIA

1.00ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6555414004

Certificate GIA 6555414004

Diamond specifications and retailer prices

From $2,812 NZD
As of November 5, 2026
Save $5,493 NZD (66%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,306 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555414004. Listed at 16 retailers as of November 5, 2026, with prices from $2,812 to $8,306, a $5,493 spread on the same certified stone. NZ Jewellers lists it at $8,306. 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

1.00
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555414004
Dimensions6.32 × 6.37 × 3.96 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Indented Natural, Natural
Top View
6.32 mm6.37 mm1.00 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555414004
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

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 5
Current: $8,306 NZD|Low: $2,665 NZD|High: $8,306 NZD|Avg: $3,715 NZD|+25.9%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 16$2,812 NZD
Retailer 3$2,976 NZD
Retailer 15$3,017 NZD
Retailer 4$3,085 NZD
Retailer 8$3,085 NZD
Retailer 17$3,209 NZD
Retailer 7$3,227 NZD
Retailer 9$3,252 NZD
Retailer 2$3,303 NZD
Retailer 5$3,327 NZD
Retailer 14$3,560 NZD
Retailer 6$3,563 NZD
Retailer 10$3,675 NZD
Retailer 13$4,374 NZD
Retailer 12$4,931 NZD
Retailer 11$5,950 NZD
NZ Jewellers$8,306 NZD

18 data points across 17 retailers

16 retailers$2,812 NZD to $8,306 NZD

A
Cheapest Retailer
-
$2,812 NZD
A
Retailer 2
-
$2,976 NZD
View
A
Retailer 3
-
$3,017 NZD
View
B+
Retailer 4
-
$3,085 NZD
View
B+
Retailer 5
-
$3,209 NZD
View
B+
Retailer 6
-
$3,227 NZD
View
Retailer 7
-
$3,252 NZD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
$3,303 NZD
View
B+
Retailer 9
-
$3,327 NZD
View
B+
Retailer 10
-
$3,560 NZD
View
B+
Retailer 11
-
$3,563 NZD
View
B
Retailer 12
-
$3,675 NZD
View
B
Retailer 13
-
$4,374 NZD
View
B
Retailer 14
-
$4,931 NZD
View
B
Retailer 15
-
$5,950 NZD
View
Most Expensive
C
NZ Jewellers
7b1f8c66-e901-4452-839e-81f03380d61d · Nov 5
$8,306 NZD
$4,669 USD
View
15 more retailers have this diamond
Prices start from $2,812 NZDSave up to $5,493 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
1.00ct Round
$2,812 NZD