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Round|Natural|GIA

1.01ct J I1 Round Natural Diamond

EX • J/I1 • GIA 1428596008

Certificate GIA 1428596008

Diamond specifications and retailer prices

From $2,422 SGD
HK$14,800 HKD
As of November 1, 2026
Save $4,335 SGD (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,756 SGD at NZ Jewellers · As of October 30, 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 I1 clarity (included), with a top-tier cut grade and certified by GIA 1428596008. Listed at 12 retailers as of October 30, 2026, with prices from $2,422 to $6,756, a $4,335 spread on the same certified stone. NZ Jewellers lists it at $6,756. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
J
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1428596008
Dimensions6.44 × 6.40 × 4.03 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.44 mm6.40 mm1.01 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1428596008
Side View
Table 58.0%Crown 34°Girdle: THN-STKPavilion 41.8°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $6,756 SGD|Low: $2,405 SGD|High: $6,756 SGD|Avg: $3,507 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
November 1, 2026
Retailer 5$2,422 SGD
Retailer 6$2,595 SGD
Retailer 8$2,636 SGD
Retailer 3$2,644 SGD
Retailer 9$2,928 SGD
Retailer 11$2,928 SGD
Retailer 7$3,063 SGD
Retailer 10$3,378 SGD
Retailer 12$3,845 SGD
Retailer 2$4,018 SGD
Retailer 4$4,615 SGD
NZ Jewellers$6,756 SGD

21 data points across 12 retailers

12 retailers$2,422 SGD to $6,756 SGD

B
Cheapest Retailer
-
$2,422 SGD
HK$14,800 HKD
B+
Retailer 2
-
$2,595 SGD
$2,030 USD
View
B
Retailer 3
-
$2,636 SGD
$2,062 USD
View
B
Retailer 4
-
$2,928 SGD
$2,290 USD
View
B
Retailer 5
-
$2,928 SGD
$2,290 USD
View
B
Retailer 6
-
$3,063 SGD
$2,396 USD
View
B
Retailer 7
-
$3,375 SGD
$2,640 USD
View
B
Retailer 8
-
$3,375 SGD
$2,640 USD
View
B
Retailer 9
-
$3,378 SGD
$2,642 USD
View
B
Retailer 10
-
$3,490 SGD
$2,730 USD
View
B
Retailer 11
-
$4,018 SGD
€2,993 EUR
View
Most Expensive
C
NZ Jewellers
d52a9336-0c1b-4430-8172-acecc6e6331a · Oct 30
$6,756 SGD
$5,285 USD
View
11 more retailers have this diamond
Prices start from $2,422 SGDSave up to $4,335 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.

B+
1.01ct Round
$2,422 SGD