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Round|Natural|GIA

1.01ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2557861967

Certificate GIA 2557861967

Diamond specifications and retailer prices

From $2,526 NZD
As of November 4, 2026
Save $3,401 NZD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,252 NZD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557861967. Listed at 18 retailers as of November 2, 2026, with a 135% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.01
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2557861967
Dimensions6.38 × 6.43 × 3.97 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Natural
Top View
6.38 mm6.43 mm1.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557861967
Side View
Table 60.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.9%

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 4
Current: $3,127 NZD|Low: $2,526 NZD|High: $6,000 NZD|Avg: $4,009 NZD|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 6$2,526 NZD
Retailer 3$2,667 NZD
Retailer 1$3,127 NZD
Retailer 2$3,688 NZD
Retailer 7$4,157 NZD
Retailer 4$4,600 NZD
Retailer 5$5,927 NZD

40 data points across 7 retailers

18 retailers$2,526 NZD to $5,927 NZD

A
Cheapest Retailer
-
$2,526 NZD
A
Retailer 2
-
$2,667 NZD
View
A
Retailer 3
-
$3,127 NZD
View
B+
Retailer 4
-
$3,163 NZD
View
B+
Retailer 5
-
$3,166 NZD
View
Retailer 6
-
$3,383 NZD
View
Price last confirmed 39 days ago
Retailer 7
-
$3,383 NZD
View
Price last confirmed 29 days ago
Retailer 8
-
$3,383 NZD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
$3,398 NZD
View
Retailer 10
-
$3,522 NZD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
$3,627 NZD
View
B+
Retailer 12
-
$3,688 NZD
View
Retailer 13
-
$3,905 NZD
View
Price last confirmed 38 days ago
B+
Retailer 14
-
$4,157 NZD
View
B
Retailer 15
-
$4,600 NZD
View
B
Retailer 16
-
$5,927 NZD
View
Retailer 17
-
$8,252 NZD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
8d1b63ea-2986-4b81-a6cd-327223e6f70d · Sep 28
$8,252 NZD
$4,639 USD
View
Price last confirmed 39 days ago
17 more retailers have this diamond
Prices start from $2,526 NZDSave up to $3,401 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
1.01ct Round
$2,526 NZD