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Round|Natural|GIA

1.05ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2494312059

Certificate GIA 2494312059

Diamond specifications and retailer prices

From $7,089 NZD
As of November 6, 2026
Save $8,541 NZD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $20,818 NZD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 2494312059. Listed at 15 retailers as of November 5, 2026, with a 120% 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

1.05
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2494312059
Dimensions6.49 × 6.46 × 4.07 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.49 mm6.46 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2494312059
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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 6
Current: $8,776 NZD|Low: $7,089 NZD|High: $14,460 NZD|Avg: $9,434 NZD|+1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$7,089 NZD
Retailer 5$7,297 NZD
Retailer 7$7,694 NZD
Retailer 9$8,128 NZD
Retailer 1$8,776 NZD
Retailer 6$9,043 NZD
Retailer 3$10,087 NZD
Retailer 2$10,946 NZD
Retailer 4$14,251 NZD

44 data points across 9 retailers

15 retailers$7,089 NZD to $15,631 NZD

B+
Cheapest Retailer
-
$7,089 NZD
B+
Retailer 2
-
$7,297 NZD
View
B+
Retailer 3
-
$7,694 NZD
View
B
Retailer 4
-
$8,128 NZD
View
Retailer 5
-
$8,128 NZD
View
Price last confirmed 9 days ago
B
Retailer 6
-
$8,128 NZD
View
B
Retailer 7
-
$8,776 NZD
View
Retailer 8
-
$9,043 NZD
View
Price last confirmed 29 days ago
B
Retailer 9
-
$9,378 NZD
View
Retailer 10
-
$9,905 NZD
View
Price last confirmed 15 days ago
B
Retailer 11
-
$10,087 NZD
View
B
Retailer 12
-
$10,946 NZD
View
B
Retailer 13
-
$14,251 NZD
View
B
Retailer 14
-
$15,631 NZD
View
Most Expensive
Diamond Quarter
1.05SI1F2459DC59N · Nov 5
$20,818 NZD
£9,087 GBP
View
Price under review
14 more retailers have this diamond
Prices start from $7,089 NZDSave up to $8,541 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
$7,089 NZD