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Round|Natural|GIA

1.01ct D SI1 Round Natural Diamond

GD • D/SI1 • GIA 7428515436

Certificate GIA 7428515436

Diamond specifications and retailer prices

From $4,149 SGD
As of November 6, 2026
Save $5,426 SGD (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $9,575 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by GIA 7428515436. Listed at 23 retailers as of November 5, 2026, with prices from $4,149 to $9,575, a $5,426 spread on the same certified stone. NZ Jewellers lists it at $9,575. 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

1.01
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle38.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7428515436
Dimensions6.19 × 6.12 × 3.99 mm
L/W Ratio1.01
Top View
6.19 mm6.12 mm1.01 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7428515436
Side View
Table 63.0%Crown 38.5°Girdle: THK-VTKPavilion 41°Culet: NoneDepth 64.8%

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 6
Current: $5,532 SGD|Low: $3,974 SGD|High: $8,858 SGD|Avg: $5,681 SGD|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$4,225 SGD
Retailer 10$4,464 SGD
Retailer 12$4,596 SGD
Retailer 3$4,732 SGD
Retailer 11$5,171 SGD
Retailer 1$5,532 SGD
Retailer 4$5,745 SGD
Retailer 7$5,814 SGD
Retailer 2$5,862 SGD
Retailer 6$6,213 SGD
Retailer 5$6,708 SGD
Retailer 8$8,730 SGD

40 data points across 12 retailers

23 retailers$4,149 SGD to $9,575 SGD

B+
Cheapest Retailer
-
$4,149 SGD
B+
Retailer 2
-
$4,225 SGD
View
B+
Retailer 3
-
$4,381 SGD
View
B+
Retailer 4
-
$4,464 SGD
View
B+
Retailer 5
-
$4,472 SGD
View
B+
Retailer 6
-
$4,515 SGD
View
B
Retailer 7
-
$4,596 SGD
View
Final sale: no returns
B
Retailer 8
-
$4,718 SGD
View
B
Retailer 9
-
$4,732 SGD
View
B
Retailer 10
-
$4,758 SGD
View
B
Retailer 11
-
$4,979 SGD
View
Retailer 12
-
$4,979 SGD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$5,171 SGD
View
B
Retailer 14
-
$5,532 SGD
View
B
Retailer 15
-
$5,745 SGD
View
B
Retailer 16
-
$5,814 SGD
View
Retailer 17
-
$5,862 SGD
View
Price last confirmed 28 days ago
B
Retailer 18
-
$6,213 SGD
View
Retailer 19
-
$6,218 SGD
View
Price last confirmed 14 days ago
B
Retailer 20
-
$6,708 SGD
View
C
Retailer 21
-
$7,946 SGD
View
B
Retailer 22
-
$8,730 SGD
View
Most Expensive
C
NZ Jewellers
5e7b7b9f-a9e6-4925-a396-61eccba89809 · Nov 5
$9,575 SGD
$7,496 USD
View
22 more retailers have this diamond
Prices start from $4,149 SGDSave up to $5,426 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
$4,149 SGD