Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1563443794

Certificate GIA 1563443794

Diamond specifications and retailer prices

From $1,217 USD
As of November 5, 2026
Save $2,907 USD (70%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,978 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1563443794. Listed at 13 retailers as of November 2, 2026, with a 239% 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

1.00
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1563443794
Dimensions6.35 × 6.40 × 3.91 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.35 mm6.40 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1563443794
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.3%

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 5
Current: $5,978 USD|Low: $1,217 USD|High: $5,978 USD|Avg: $2,322 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 2$1,217 USD
Retailer 4$1,435 USD
Retailer 5$1,795 USD
Retailer 7$2,044 USD
Retailer 6$2,056 USD
Retailer 3$3,052 USD
Retailer 13$3,299 USD
Retailer 11$3,307 USD
Retailer 10$3,439 USD
Retailer 12$3,574 USD
Retailer 8$3,712 USD
Retailer 9$4,124 USD
MOH London$5,978 USD

21 data points across 13 retailers

13 retailers$1,217 USD to $4,124 USD

A
Cheapest Retailer
-
$1,217 USD
A
Retailer 2
-
$1,435 USD
View
B+
Retailer 3
-
$1,795 USD
View
B+
Retailer 4
-
$2,044 USD
View
B+
Retailer 5
-
$2,056 USD
View
B
Retailer 6
-
$3,052 USD
View
B
Retailer 7
-
$3,299 USD
View
Final sale: no returns
B
Retailer 8
-
$3,307 USD
View
B
Retailer 9
-
$3,439 USD
View
B
Retailer 10
-
$3,574 USD
View
B
Retailer 11
-
$3,712 USD
View
B
Retailer 12
-
$4,124 USD
View
Most Expensive
MOH London
22960E667 · Nov 2
$5,978 USD
£4,707 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $1,217 USDSave up to $2,907 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
$1,217 USD