CaratHunter
Plans
Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6502517721

Certificate GIA 6502517721

Diamond specifications and retailer prices

From $4,178 NZD
$2,355 USD
As of November 1, 2026
Save $6,877 NZD (62%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $11,056 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6502517721. Listed at 23 retailers as of October 30, 2026, with prices from $4,178 to $11,056, a $6,877 spread on the same certified stone. NZ Jewellers lists it at $11,056. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6502517721
Dimensions6.37 × 6.32 × 3.93 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.37 mm6.32 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6502517721
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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: $11,056 NZD|Low: $4,053 NZD|High: $11,056 NZD|Avg: $6,545 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 6$4,178 NZD
Retailer 7$4,422 NZD
Retailer 9$4,975 NZD
Retailer 4$5,621 NZD
Retailer 3$5,798 NZD
Retailer 8$5,925 NZD
Retailer 5$6,500 NZD
Retailer 2$8,844 NZD
NZ Jewellers$11,056 NZD

42 data points across 9 retailers

23 retailers$4,178 NZD to $11,056 NZD

A
Cheapest Retailer
-
$4,178 NZD
$2,355 USD
A
Retailer 2
-
$4,203 NZD
$2,369 USD
View
B+
Retailer 3
-
$4,290 NZD
$2,418 USD
View
B+
Retailer 4
-
$4,422 NZD
$2,492 USD
View
Final sale: no returns
B+
Retailer 5
-
$4,442 NZD
A$3,851 AUD
View
B+
Retailer 6
-
$4,720 NZD
$2,660 USD
View
B+
Retailer 7
-
$4,791 NZD
$2,700 USD
View
B+
Retailer 8
-
$4,791 NZD
$2,700 USD
View
B+
Retailer 9
-
$4,855 NZD
$2,736 USD
View
B+
Retailer 10
-
$4,975 NZD
$2,804 USD
View
B
Retailer 11
-
$5,433 NZD
$3,062 USD
View
B
Retailer 12
-
$5,465 NZD
$3,080 USD
View
B
Retailer 13
-
$5,465 NZD
$3,080 USD
View
B
Retailer 14
-
$5,529 NZD
$3,116 USD
View
B
Retailer 15
-
$5,621 NZD
£2,494 GBP
View
B
Retailer 16
-
$5,660 NZD
$3,190 USD
View
B+
Retailer 17
-
$5,798 NZD
€3,112 EUR
View
Retailer 18
-
$5,925 NZD
A$5,138 AUD
View
Price last confirmed 25 days ago
B+
Retailer 19
-
$5,988 NZD
$3,375 USD
View
Retailer 20
-
$6,139 NZD
$3,460 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
$6,500 NZD
ZAR 59,186 ZAR
View
B
Retailer 22
-
$8,844 NZD
£3,925 GBP
View
Most Expensive
B
NZ Jewellers
954e9cce-4327-4cdb-a9ff-6c9d33a1f055 · Oct 30
$11,056 NZD
$6,231 USD
View
22 more retailers have this diamond
Prices start from $4,178 NZDSave up to $6,877 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
$4,178 NZD