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Round|Natural|GIA

1.00ct G SI1 Round Natural Diamond

VG • G/SI1 • GIA 6551995027

Certificate GIA 6551995027

Diamond specifications and retailer prices

From $2,515 AUD
As of November 5, 2026
Save $1,684 AUD (40%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $6,554 AUD at NZ Jewellers · As of October 20, 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 6551995027. Listed at 24 retailers as of November 5, 2026, with a 67% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle38.5°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 6551995027
Dimensions6.23 × 6.15 × 3.98 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.23 mm6.15 mm1.00 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6551995027
Side View
Table 58.0%Crown 38.5°Girdle: MED-THKPavilion 40°Culet: NDepth 64.2%

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 5
Current: $6,554 AUD|Low: $2,384 AUD|High: $6,836 AUD|Avg: $3,684 AUD|-4.1%
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
Retailer 22
November 6, 2026
Retailer 11$2,447 AUD
Retailer 3$2,515 AUD
Retailer 2$2,698 AUD
Retailer 6$2,758 AUD
Retailer 21$2,906 AUD
Retailer 7$2,969 AUD
Retailer 14$2,970 AUD
Retailer 18$3,035 AUD
Retailer 16$3,155 AUD
Retailer 12$3,228 AUD
Retailer 8$3,237 AUD
Retailer 5$3,464 AUD
Retailer 22$3,464 AUD
Retailer 19$3,563 AUD
Retailer 17$3,580 AUD
Retailer 10$3,617 AUD
Retailer 4$4,024 AUD
Retailer 13$4,026 AUD
Retailer 15$4,071 AUD
Retailer 20$4,199 AUD
Retailer 9$5,520 AUD
NZ Jewellers$6,554 AUD

25 data points across 22 retailers

24 retailers$2,515 AUD to $4,199 AUD

Retailer 1
-
$2,447 AUD
Price last confirmed 17 days ago
A
Retailer 2
-
$2,515 AUD
View
A
Retailer 3
-
$2,698 AUD
View
A
Retailer 4
-
$2,758 AUD
View
Final sale: no returns
A
Retailer 5
-
$2,906 AUD
View
Retailer 6
-
$2,970 AUD
View
Price last confirmed 22 days ago
A
Retailer 7
-
$3,035 AUD
View
B+
Retailer 8
-
$3,155 AUD
View
Retailer 9
-
$3,228 AUD
View
Price last confirmed 21 days ago
Retailer 10
-
$3,228 AUD
View
Price last confirmed 17 days ago
Retailer 11
-
$3,237 AUD
View
Price last confirmed 16 days ago
B+
Retailer 12
-
$3,308 AUD
View
Retailer 13
-
$3,377 AUD
View
Price last confirmed 22 days ago
B+
Retailer 14
-
$3,464 AUD
View
B+
Retailer 15
-
$3,464 AUD
View
B+
Retailer 16
-
$3,563 AUD
View
B+
Retailer 17
-
$3,580 AUD
View
Retailer 18
-
$3,617 AUD
View
Price last confirmed 16 days ago
B+
Retailer 19
-
$4,024 AUD
View
B+
Retailer 20
-
$4,026 AUD
View
Retailer 21
-
$4,071 AUD
View
Price last confirmed 31 days ago
B+
Retailer 22
-
$4,199 AUD
View
Retailer 23
-
$5,520 AUD
View
Price last confirmed 16 days ago
Most Expensive
NZ Jewellers
26d58c3d-955b-4e7c-893a-a17bfa42d8f1 · Oct 20
$6,554 AUD
$4,503 USD
View
Price last confirmed 17 days ago
23 more retailers have this diamond
Prices start from $2,515 AUDSave up to $1,684 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
$2,515 AUD