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Round|Natural|GIA

1.00ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6505210996

Certificate GIA 6505210996

Diamond specifications and retailer prices

From $2,560 NZD
As of November 6, 2026
Save $6,096 NZD (70%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,656 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 6505210996. Listed at 18 retailers as of November 5, 2026, with prices from $2,560 to $8,656, a $6,096 spread on the same certified stone. NZ Jewellers lists it at $8,656. 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
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6505210996
Dimensions6.42 × 6.39 × 3.99 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.42 mm6.39 mm1.00 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6505210996
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.3%

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 6
Current: $2,560 NZD|Low: $2,560 NZD|High: $6,251 NZD|Avg: $3,652 NZD|-3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1$2,560 NZD
Retailer 7$2,595 NZD
Retailer 8$3,207 NZD
Retailer 9$3,309 NZD
Retailer 6$3,410 NZD
Retailer 2$3,442 NZD
Retailer 3$3,832 NZD
Retailer 5$4,371 NZD
Retailer 4$6,201 NZD

31 data points across 9 retailers

18 retailers$2,560 NZD to $8,656 NZD

A
Cheapest Retailer
-
$2,560 NZD
A
Retailer 2
-
$2,595 NZD
View
B+
Retailer 3
-
$3,113 NZD
View
B+
Retailer 4
-
$3,207 NZD
View
B+
Retailer 5
-
$3,309 NZD
View
B+
Retailer 6
-
$3,410 NZD
View
B+
Retailer 7
-
$3,442 NZD
View
Retailer 8
-
$3,549 NZD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$3,549 NZD
View
B+
Retailer 10
-
$3,602 NZD
View
B+
Retailer 11
-
$3,713 NZD
View
B+
Retailer 12
-
$3,794 NZD
View
B+
Retailer 13
-
$3,832 NZD
View
B
Retailer 14
-
$4,095 NZD
View
B
Retailer 15
-
$4,371 NZD
View
B
Retailer 16
-
$5,050 NZD
View
B
Retailer 17
-
$6,201 NZD
View
Most Expensive
C
NZ Jewellers
98a302cd-3331-4711-b280-640809bb727d · Nov 5
$8,656 NZD
$4,866 USD
View
17 more retailers have this diamond
Prices start from $2,560 NZDSave up to $6,096 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
$2,560 NZD