Round|Natural|GIA

1.00ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 7421614155

Certificate GIA 7421614155

Diamond specifications and retailer prices

From $1,552 USD
As of October 31, 2026
Save $2,932 USD (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,484 USD 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 $1,552 to $4,484, a $2,932 spread on the same certified stone. NZ Jewellers lists it at $4,484. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,174 USD|Low: $1,548 USD|High: $3,803 USD|Avg: $2,381 USD
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$1,552 USD
Retailer 9$1,561 USD
Retailer 7$1,946 USD
Retailer 10$1,979 USD
Retailer 1$2,174 USD
Retailer 4$2,316 USD
Retailer 3$2,618 USD
Retailer 6$2,630 USD
Retailer 2$2,637 USD
Retailer 5$3,757 USD

38 data points across 10 retailers

20 retailers$1,552 USD to $4,484 USD

A
Cheapest Retailer
-
$1,552 USD
A
Retailer 2
-
$1,561 USD
View
B+
Retailer 3
-
$1,897 USD
View
Retailer 4
-
$1,913 USD
View
Price last confirmed 82 days ago
B+
Retailer 5
-
$1,946 USD
View
B+
Retailer 6
-
$1,979 USD
View
Final sale: no returns
Retailer 7
-
$2,145 USD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$2,145 USD
View
B
Retailer 9
-
$2,165 USD
View
B
Retailer 10
-
$2,174 USD
View
B
Retailer 11
-
$2,244 USD
View
B
Retailer 12
-
$2,283 USD
View
B
Retailer 13
-
$2,316 USD
View
B
Retailer 14
-
$2,475 USD
View
B
Retailer 15
-
$2,618 USD
View
B
Retailer 16
-
$2,630 USD
View
Retailer 17
-
$2,637 USD
View
Price last confirmed 31 days ago
B
Retailer 18
-
$3,483 USD
View
B
Retailer 19
-
$3,757 USD
View
Most Expensive
C
NZ Jewellers
810c9545-2c13-417f-bec6-102fb59b971f · Nov 5
$4,484 USD
View
19 more retailers have this diamond
Prices start from $1,552 USDSave up to $2,932 USD

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
$1,552 USD