Round|Natural|GIA

1.01ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6541985573

Certificate GIA 6541985573

Diamond specifications and retailer prices

From $1,559 USD
As of November 6, 2026
Save $2,816 USD (64%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,375 USD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct 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 6541985573. Listed at 20 retailers as of November 5, 2026, with a 181% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.01
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6541985573
Dimensions6.39 × 6.40 × 4.00 mm
L/W Ratio1.00
Top View
6.39 mm6.40 mm1.01 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541985573
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NDepth 62.6%

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: $1,559 USD|Low: $1,559 USD|High: $3,710 USD|Avg: $2,546 USD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$1,559 USD
Retailer 7$1,932 USD
Retailer 2$2,260 USD
Retailer 4$2,406 USD
Retailer 5$2,554 USD
Retailer 8$2,580 USD
Retailer 3$2,662 USD
Retailer 6$3,656 USD

40 data points across 8 retailers

20 retailers$1,559 USD to $4,375 USD

A
Cheapest Retailer
-
$1,559 USD
B+
Retailer 2
-
$1,835 USD
View
B+
Retailer 3
-
$1,891 USD
View
B+
Retailer 4
-
$1,932 USD
View
Final sale: no returns
Retailer 5
-
$2,093 USD
View
Price last confirmed 44 days ago
Retailer 6
-
$2,093 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$2,093 USD
View
B+
Retailer 8
-
$2,120 USD
View
B+
Retailer 9
-
$2,189 USD
View
B+
Retailer 10
-
$2,231 USD
View
B+
Retailer 11
-
$2,260 USD
View
B
Retailer 12
-
$2,406 USD
View
B
Retailer 13
-
$2,415 USD
View
Retailer 14
-
$2,415 USD
View
Price last confirmed 45 days ago
B+
Retailer 15
-
$2,554 USD
View
Retailer 16
-
$2,580 USD
View
Price last confirmed 32 days ago
B+
Retailer 17
-
$2,662 USD
View
B
Retailer 18
-
$3,656 USD
View
B
Retailer 19
-
$4,375 USD
View
Most Expensive
NZ Jewellers
fc881e6b-95b8-4248-a7c6-d5d1784db456 · Sep 21
$4,375 USD
View
Price last confirmed 45 days ago
19 more retailers have this diamond
Prices start from $1,559 USDSave up to $2,816 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
1.01ct Round
$1,559 USD