CaratHunter
Plans
Round|Natural|GIA

1.00ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 7421614155

Certificate GIA 7421614155

Diamond specifications and retailer prices

From $1,989 SGD
As of October 31, 2026
Save $3,758 SGD (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,747 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 7421614155. Listed at 20 retailers as of October 31, 2026, with prices from $1,989 to $5,747, a $3,758 spread on the same certified stone. NZ Jewellers lists it at $5,747. 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
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,786 SGD|Low: $1,984 SGD|High: $4,874 SGD|Avg: $3,052 SGD
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$1,989 SGD
Retailer 9$2,001 SGD
Retailer 7$2,494 SGD
Retailer 10$2,536 SGD
Retailer 1$2,786 SGD
Retailer 4$2,968 SGD
Retailer 3$3,355 SGD
Retailer 6$3,371 SGD
Retailer 2$3,380 SGD
Retailer 5$4,815 SGD

38 data points across 10 retailers

20 retailers$1,989 SGD to $5,747 SGD

A
Cheapest Retailer
-
$1,989 SGD
A
Retailer 2
-
$2,001 SGD
View
B+
Retailer 3
-
$2,431 SGD
View
Retailer 4
-
$2,452 SGD
View
Price last confirmed 82 days ago
B+
Retailer 5
-
$2,494 SGD
View
B+
Retailer 6
-
$2,536 SGD
View
Final sale: no returns
Retailer 7
-
$2,749 SGD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$2,749 SGD
View
B
Retailer 9
-
$2,775 SGD
View
B
Retailer 10
-
$2,786 SGD
View
B
Retailer 11
-
$2,876 SGD
View
B
Retailer 12
-
$2,926 SGD
View
B
Retailer 13
-
$2,968 SGD
View
B
Retailer 14
-
$3,172 SGD
View
B
Retailer 15
-
$3,355 SGD
View
B
Retailer 16
-
$3,371 SGD
View
Retailer 17
-
$3,380 SGD
View
Price last confirmed 31 days ago
B
Retailer 18
-
$4,464 SGD
View
B
Retailer 19
-
$4,815 SGD
View
Most Expensive
C
NZ Jewellers
810c9545-2c13-417f-bec6-102fb59b971f · Nov 5
$5,747 SGD
$4,484 USD
View
19 more retailers have this diamond
Prices start from $1,989 SGDSave up to $3,758 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
$1,989 SGD