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Round|Natural|GIA

1.00ct G SI1 Round Natural Diamond

VG • G/SI1 • GIA 6551874408

Certificate GIA 6551874408

Diamond specifications and retailer prices

From $2,626 AUD
As of November 5, 2026
Save $4,609 AUD (64%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,235 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6551874408. Listed at 23 retailers as of November 5, 2026, with prices from $2,626 to $7,235, a $4,609 spread on the same certified stone. NZ Jewellers lists it at $7,235. 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
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle35°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 6551874408
Dimensions6.30 × 6.33 × 3.88 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.30 mm6.33 mm1.00 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6551874408
Side View
Table 60.0%Crown 35°Girdle: ThickPavilion 40.4°Culet: NoneDepth 61.5%

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 5
Current: $7,235 AUD|Low: $2,496 AUD|High: $8,549 AUD|Avg: $3,861 AUD|-4.0%
NZ Jewellers
Retailer 2
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Retailer 24
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Retailer 26
November 6, 2026
Retailer 14$2,573 AUD
Retailer 4$2,626 AUD
Retailer 9$2,893 AUD
Retailer 25$3,051 AUD
Retailer 11$3,117 AUD
Retailer 7$3,135 AUD
Retailer 10$3,145 AUD
Retailer 22$3,165 AUD
Retailer 18$3,183 AUD
Retailer 13$3,311 AUD
Retailer 16$3,395 AUD
Retailer 12$3,409 AUD
Retailer 6$3,433 AUD
Retailer 17$3,551 AUD
Retailer 26$3,617 AUD
Retailer 3$3,624 AUD
Retailer 8$3,624 AUD
Retailer 23$3,639 AUD
Retailer 21$3,755 AUD
Retailer 20$4,011 AUD
Retailer 24$4,030 AUD
Retailer 5$4,224 AUD
Retailer 2$4,226 AUD
Retailer 19$4,438 AUD
Retailer 15$5,979 AUD
NZ Jewellers$7,235 AUD

19 data points across 26 retailers

23 retailers$2,626 AUD to $7,235 AUD

A
Cheapest Retailer
-
$2,626 AUD
A
Retailer 2
-
$2,893 AUD
View
Final sale: no returns
A
Retailer 3
-
$3,051 AUD
View
A
Retailer 4
-
$3,135 AUD
View
A
Retailer 5
-
$3,165 AUD
View
Retailer 6
-
$3,183 AUD
View
Price last confirmed 22 days ago
B+
Retailer 7
-
$3,311 AUD
View
Retailer 8
-
$3,395 AUD
View
Price last confirmed 21 days ago
Retailer 9
-
$3,409 AUD
View
Price last confirmed 16 days ago
A
Retailer 10
-
$3,433 AUD
View
Retailer 11
-
$3,551 AUD
View
Price last confirmed 22 days ago
A
Retailer 12
-
$3,617 AUD
View
B+
Retailer 13
-
$3,624 AUD
View
B+
Retailer 14
-
$3,624 AUD
View
A
Retailer 15
-
$3,639 AUD
View
B+
Retailer 16
-
$3,755 AUD
View
B+
Retailer 17
-
$4,011 AUD
View
B+
Retailer 18
-
$4,030 AUD
View
B+
Retailer 19
-
$4,224 AUD
View
B+
Retailer 20
-
$4,226 AUD
View
Retailer 21
-
$4,438 AUD
View
Price last confirmed 30 days ago
Retailer 22
-
$5,979 AUD
View
Price last confirmed 18 days ago
Most Expensive
B
NZ Jewellers
620f33cf-fbfa-4f26-948a-5e308fd4b90e · Nov 5
$7,235 AUD
$4,971 USD
View
22 more retailers have this diamond
Prices start from $2,626 AUDSave up to $4,609 AUD

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
$2,626 AUD