Round|Natural|GIA

1.00ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 7526656191

Certificate GIA 7526656191

Diamond specifications and retailer prices

From $1,449 USD
As of November 6, 2026
Save $2,782 USD (66%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,231 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 top-tier cut grade and certified by GIA 7526656191. Listed at 20 retailers as of November 5, 2026, with prices from $1,449 to $4,231, a $2,782 spread on the same certified stone. NZ Jewellers lists it at $4,231. 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

1.00
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7526656191
Dimensions6.38 × 6.34 × 3.99 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Pinpoint
Top View
6.38 mm6.34 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7526656191
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.7%

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: Nov 6
Current: $1,449 USD|Low: $1,449 USD|High: $3,583 USD|Avg: $2,135 USD|-3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1$1,449 USD
Retailer 10$1,472 USD
Retailer 2$1,828 USD
Retailer 3$1,867 USD
Retailer 4$1,910 USD
Retailer 11$1,929 USD
Retailer 5$2,046 USD
Retailer 6$2,172 USD
Retailer 7$2,470 USD
Retailer 9$2,473 USD
Retailer 8$3,536 USD

28 data points across 11 retailers

20 retailers$1,449 USD to $4,231 USD

A
Cheapest Retailer
-
$1,449 USD
A
Retailer 2
-
$1,472 USD
View
B+
Retailer 3
-
$1,792 USD
View
B+
Retailer 4
-
$1,828 USD
View
B+
Retailer 5
-
$1,867 USD
View
Final sale: no returns
B+
Retailer 6
-
$1,885 USD
View
B+
Retailer 7
-
$1,910 USD
View
B+
Retailer 8
-
$1,929 USD
View
B+
Retailer 9
-
$2,024 USD
View
Retailer 10
-
$2,024 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$2,046 USD
View
B+
Retailer 12
-
$2,055 USD
View
B+
Retailer 13
-
$2,162 USD
View
B+
Retailer 14
-
$2,172 USD
View
B
Retailer 15
-
$2,335 USD
View
B+
Retailer 16
-
$2,470 USD
View
B+
Retailer 17
-
$2,473 USD
View
Retailer 18
-
$2,495 USD
View
Price last confirmed 32 days ago
B
Retailer 19
-
$3,536 USD
View
Most Expensive
B
NZ Jewellers
2a0b8fc2-4073-4b2e-ae37-93bc25de2e8c · Nov 5
$4,231 USD
View
19 more retailers have this diamond
Prices start from $1,449 USDSave up to $2,782 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
$1,449 USD