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Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 2566053993

Certificate GIA 2566053993

Diamond specifications and retailer prices

From $2,748 NZD
HK$12,100 HKD
As of November 1, 2026
Save $4,892 NZD (64%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,640 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 very-good cut grade and certified by GIA 2566053993. Listed at 23 retailers as of October 30, 2026, with prices from $2,748 to $7,640, a $4,892 spread on the same certified stone. NZ Jewellers lists it at $7,640. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2566053993
Dimensions6.17 × 6.24 × 4.01 mm
L/W Ratio1.01
Top View
6.17 mm6.24 mm1.00 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566053993
Side View
Table 59.0%Crown 37.5°Girdle: THN-THKPavilion 40.8°Culet: NoneDepth 64.7%

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: $7,640 NZD|Low: $2,725 NZD|High: $7,940 NZD|Avg: $4,203 NZD|-3.8%
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 19$2,748 NZD
Retailer 13$2,786 NZD
Retailer 16$3,256 NZD
Retailer 8$3,302 NZD
Retailer 17$3,516 NZD
Retailer 9$3,600 NZD
Retailer 4$3,655 NZD
Retailer 7$3,655 NZD
Retailer 3$3,708 NZD
Retailer 14$3,824 NZD
Retailer 12$3,829 NZD
Retailer 5$3,900 NZD
Retailer 18$3,986 NZD
Retailer 6$4,010 NZD
Retailer 11$4,216 NZD
Retailer 20$4,492 NZD
Retailer 2$4,971 NZD
Retailer 15$5,004 NZD
Retailer 10$5,324 NZD
Retailer 21$6,436 NZD
NZ Jewellers$7,640 NZD

17 data points across 21 retailers

23 retailers$2,748 NZD to $7,640 NZD

A
Cheapest Retailer
-
$2,748 NZD
HK$12,100 HKD
A
Retailer 2
-
$2,786 NZD
₹149,565 INR
View
B+
Retailer 3
-
$3,256 NZD
$1,835 USD
View
A
Retailer 4
-
$3,302 NZD
$1,861 USD
View
Retailer 5
-
$3,495 NZD
$1,970 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$3,516 NZD
£1,560 GBP
View
A
Retailer 7
-
$3,600 NZD
$2,029 USD
View
A
Retailer 8
-
$3,655 NZD
$2,060 USD
View
A
Retailer 9
-
$3,655 NZD
$2,060 USD
View
B+
Retailer 10
-
$3,708 NZD
$2,090 USD
View
A
Retailer 11
-
$3,824 NZD
$2,155 USD
View
A
Retailer 12
-
$3,829 NZD
SGD 2,916 SGD
View
A
Retailer 13
-
$3,900 NZD
$2,198 USD
View
B+
Retailer 14
-
$3,986 NZD
£1,769 GBP
View
A
Retailer 15
-
$4,010 NZD
$2,260 USD
View
B+
Retailer 16
-
$4,216 NZD
$2,376 USD
View
B+
Retailer 17
-
$4,492 NZD
ZAR 40,896 ZAR
View
Retailer 18
-
$4,771 NZD
A$4,137 AUD
View
Price last confirmed 26 days ago
B+
Retailer 19
-
$4,971 NZD
€2,668 EUR
View
B+
Retailer 20
-
$5,004 NZD
$2,820 USD
View
B+
Retailer 21
-
$5,324 NZD
$3,001 USD
View
B
Retailer 22
-
$6,436 NZD
£2,856 GBP
View
Most Expensive
B
NZ Jewellers
d7dd0661-fee1-4ae8-a928-035d6a473d34 · Oct 30
$7,640 NZD
$4,306 USD
View
22 more retailers have this diamond
Prices start from $2,748 NZDSave up to $4,892 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
$2,748 NZD