CaratHunter
Plans
Round|Natural|GIA

1.00ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 7421614155

Certificate GIA 7421614155

Diamond specifications and retailer prices

From $2,217 AUD
As of October 31, 2026
Save $4,188 AUD (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,405 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 7421614155. Listed at 20 retailers as of October 31, 2026, with prices from $2,217 to $6,405, a $4,188 spread on the same certified stone. NZ Jewellers lists it at $6,405. 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
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7421614155
Dimensions6.30 × 6.22 × 4.01 mm
L/W Ratio1.01
Top View
6.30 mm6.22 mm1.00 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7421614155
Side View
Table 58.0%Crown 37°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 64.0%

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: Oct 31
Current: $3,106 AUD|Low: $2,211 AUD|High: $5,433 AUD|Avg: $3,402 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$2,217 AUD
Retailer 9$2,230 AUD
Retailer 7$2,780 AUD
Retailer 10$2,827 AUD
Retailer 1$3,106 AUD
Retailer 4$3,308 AUD
Retailer 3$3,740 AUD
Retailer 6$3,757 AUD
Retailer 2$3,767 AUD
Retailer 5$5,367 AUD

38 data points across 10 retailers

20 retailers$2,217 AUD to $6,405 AUD

A
Cheapest Retailer
-
$2,217 AUD
A
Retailer 2
-
$2,230 AUD
View
B+
Retailer 3
-
$2,710 AUD
View
Retailer 4
-
$2,733 AUD
View
Price last confirmed 82 days ago
B+
Retailer 5
-
$2,780 AUD
View
B+
Retailer 6
-
$2,827 AUD
View
Final sale: no returns
Retailer 7
-
$3,064 AUD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$3,064 AUD
View
B
Retailer 9
-
$3,093 AUD
View
B
Retailer 10
-
$3,106 AUD
View
B
Retailer 11
-
$3,206 AUD
View
B
Retailer 12
-
$3,261 AUD
View
B
Retailer 13
-
$3,308 AUD
View
B
Retailer 14
-
$3,536 AUD
View
B
Retailer 15
-
$3,740 AUD
View
B
Retailer 16
-
$3,757 AUD
View
Retailer 17
-
$3,767 AUD
View
Price last confirmed 31 days ago
B
Retailer 18
-
$4,975 AUD
View
B
Retailer 19
-
$5,367 AUD
View
Most Expensive
C
NZ Jewellers
810c9545-2c13-417f-bec6-102fb59b971f · Nov 5
$6,405 AUD
$4,484 USD
View
19 more retailers have this diamond
Prices start from $2,217 AUDSave up to $4,188 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
$2,217 AUD