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Round|Natural|GIA

1.00ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 7418360134

Certificate GIA 7418360134

Diamond specifications and retailer prices

From $1,847 SGD
As of November 6, 2026
Save $3,546 SGD (66%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,393 SGD 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 7418360134. Listed at 20 retailers as of November 5, 2026, with prices from $1,847 to $5,393, a $3,546 spread on the same certified stone. NZ Jewellers lists it at $5,393. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 7418360134
Dimensions6.24 × 6.16 × 4.02 mm
L/W Ratio1.01
Top View
6.24 mm6.16 mm1.00 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7418360134
Side View
Table 57.0%Crown 38.5°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 64.8%

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: Nov 6
Current: $2,391 SGD|Low: $1,847 SGD|High: $4,573 SGD|Avg: $2,880 SGD
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 4$1,847 SGD
Retailer 9$1,880 SGD
Retailer 2$2,381 SGD
Retailer 1$2,391 SGD
Retailer 11$2,401 SGD
Retailer 10$2,459 SGD
Retailer 6$2,785 SGD
Retailer 5$3,147 SGD
Retailer 7$3,152 SGD
Retailer 3$3,179 SGD
Retailer 8$4,519 SGD

38 data points across 11 retailers

20 retailers$1,847 SGD to $5,393 SGD

A
Cheapest Retailer
-
$1,847 SGD
A
Retailer 2
-
$1,880 SGD
View
B+
Retailer 3
-
$2,381 SGD
View
Final sale: no returns
B+
Retailer 4
-
$2,391 SGD
View
B+
Retailer 5
-
$2,401 SGD
View
B+
Retailer 6
-
$2,459 SGD
View
Retailer 7
-
$2,579 SGD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$2,579 SGD
View
B+
Retailer 9
-
$2,608 SGD
View
B+
Retailer 10
-
$2,625 SGD
View
B
Retailer 11
-
$2,698 SGD
View
B
Retailer 12
-
$2,755 SGD
View
B
Retailer 13
-
$2,785 SGD
View
B
Retailer 14
-
$2,976 SGD
View
B
Retailer 15
-
$3,147 SGD
View
B
Retailer 16
-
$3,152 SGD
View
Retailer 17
-
$3,179 SGD
View
Price last confirmed 32 days ago
C
Retailer 18
-
$4,449 SGD
View
B
Retailer 19
-
$4,519 SGD
View
Most Expensive
C
NZ Jewellers
c09157e4-e93d-4d24-be7d-5b4b30bc5ff4 · Nov 5
$5,393 SGD
$4,222 USD
View
19 more retailers have this diamond
Prices start from $1,847 SGDSave up to $3,546 SGD

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
$1,847 SGD