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Round|Natural|GIA

1.01ct J SI1 Round Natural Diamond

ID • J/SI1 • GIA 241

Certificate GIA 241

Diamond specifications and retailer prices

From $1,830 SGD
As of November 6, 2026
Save $4,195 SGD (70%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,025 SGD at NZ Jewellers · As of November 5, 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. Listed at 16 retailers as of November 5, 2026, with prices from $1,830 to $6,025, a $4,195 spread on the same certified stone. NZ Jewellers lists it at $6,025. 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 241
Dimensions6.37 × 6.39 × 4.00 mm
L/W Ratio1.00
Top View
6.37 mm6.39 mm1.01 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 241
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: 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: $6,025 SGD|Low: $1,830 SGD|High: $6,025 SGD|Avg: $2,622 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 13$1,830 SGD
Retailer 2$1,857 SGD
Retailer 8$2,280 SGD
Retailer 5$2,341 SGD
Retailer 7$2,355 SGD
Retailer 3$2,367 SGD
Retailer 6$2,401 SGD
Retailer 11$2,470 SGD
Retailer 14$2,523 SGD
Retailer 12$2,584 SGD
Retailer 10$2,705 SGD
Retailer 4$3,011 SGD
Retailer 15$3,028 SGD
Retailer 9$3,124 SGD
NZ Jewellers$6,025 SGD

12 data points across 15 retailers

16 retailers$1,830 SGD to $6,025 SGD

A
Cheapest Retailer
-
$1,830 SGD
A
Retailer 2
-
$1,857 SGD
View
A
Retailer 3
-
$2,280 SGD
View
Final sale: no returns
B+
Retailer 4
-
$2,341 SGD
View
B+
Retailer 5
-
$2,367 SGD
View
Retailer 6
-
$2,401 SGD
View
Price last confirmed 33 days ago
B+
Retailer 7
-
$2,470 SGD
View
B+
Retailer 8
-
$2,470 SGD
View
B+
Retailer 9
-
$2,523 SGD
View
B+
Retailer 10
-
$2,584 SGD
View
B+
Retailer 11
-
$2,693 SGD
View
B+
Retailer 12
-
$2,705 SGD
View
B
Retailer 13
-
$3,011 SGD
View
B
Retailer 14
-
$3,028 SGD
View
B
Retailer 15
-
$3,124 SGD
View
Most Expensive
B
NZ Jewellers
041c6135-2f49-4808-b526-5958b09ce8fb · Nov 5
$6,025 SGD
$4,717 USD
View
15 more retailers have this diamond
Prices start from $1,830 SGDSave up to $4,195 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
1.01ct Round
$1,830 SGD