CaratHunter
Plans
Round|Natural|GIA

1.05ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 1558729376

Certificate GIA 1558729376

Diamond specifications and retailer prices

From $5,632 NZD
As of November 4, 2026
Save $7,136 NZD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $12,768 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1558729376. Listed at 16 retailers as of November 4, 2026, with prices from $5,632 to $12,768, a $7,136 spread on the same certified stone. NZ Jewellers lists it at $12,768. 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

1.05
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1558729376
Dimensions6.42 × 6.46 × 4.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.42 mm6.46 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558729376
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $7,376 NZD|Low: $5,298 NZD|High: $12,256 NZD|Avg: $7,268 NZD|-10.2%
Retailer 1
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
November 6, 2026
Retailer 5$5,632 NZD
Retailer 11$5,828 NZD
Retailer 3$6,308 NZD
Retailer 4$6,640 NZD
Retailer 13$6,640 NZD
Retailer 9$6,895 NZD
Retailer 2$7,223 NZD
Retailer 1$7,376 NZD
Retailer 12$7,661 NZD
Retailer 8$8,018 NZD
Retailer 14$8,294 NZD
Retailer 6$8,619 NZD
Retailer 7$8,946 NZD
Retailer 10$12,256 NZD

39 data points across 14 retailers

16 retailers$5,632 NZD to $12,768 NZD

B+
Cheapest Retailer
-
$5,632 NZD
B+
Retailer 2
-
$5,727 NZD
View
B+
Retailer 3
-
$5,828 NZD
View
Final sale: no returns
B+
Retailer 4
-
$6,308 NZD
View
B+
Retailer 5
-
$6,640 NZD
View
B+
Retailer 6
-
$6,640 NZD
View
B+
Retailer 7
-
$6,895 NZD
View
B+
Retailer 8
-
$7,223 NZD
View
B+
Retailer 9
-
$7,223 NZD
View
B+
Retailer 10
-
$7,376 NZD
View
B+
Retailer 11
-
$7,661 NZD
View
B+
Retailer 12
-
$8,018 NZD
View
B
Retailer 13
-
$8,619 NZD
View
B
Retailer 14
-
$8,946 NZD
View
B
Retailer 15
-
$12,256 NZD
View
Most Expensive
B
NZ Jewellers
9e420a83-dc25-4924-8280-fa19a2fa8ce1 · Nov 5
$12,768 NZD
$7,078 USD
View
15 more retailers have this diamond
Prices start from $5,632 NZDSave up to $7,136 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.

B+
1.05ct Round
$5,632 NZD