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Round|Natural|GIA

1.01ct D SI1 Round Natural Diamond

VG • D/SI1 • GIA 1427402536

Certificate GIA 1427402536

Diamond specifications and retailer prices

From $7,427 SGD
As of November 4, 2026
Save $4,597 SGD (38%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $16,484 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 very-good cut grade and certified by GIA 1427402536. Listed at 24 retailers as of November 4, 2026, with a 62% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1427402536
Dimensions6.56 × 6.51 × 3.82 mm
L/W Ratio1.01
Culet sizeVery Small
Top View
6.56 mm6.51 mm1.01 ctD / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1427402536
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: Very SmallDepth 58.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $9,138 SGD|Low: $6,868 SGD|High: $13,900 SGD|Avg: $9,973 SGD|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$7,427 SGD
Retailer 7$8,241 SGD
Retailer 8$9,066 SGD
Retailer 1$9,138 SGD
Retailer 6$9,502 SGD
Retailer 3$10,115 SGD
Retailer 2$12,025 SGD
Retailer 4$13,696 SGD

45 data points across 8 retailers

24 retailers$7,427 SGD to $12,025 SGD

B
Cheapest Retailer
-
$7,427 SGD
B
Retailer 2
-
$7,438 SGD
View
B
Retailer 3
-
$7,655 SGD
View
B
Retailer 4
-
$7,786 SGD
View
B
Retailer 5
-
$8,185 SGD
View
Retailer 6
-
$8,241 SGD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$8,241 SGD
View
Final sale: no returns
B
Retailer 8
-
$8,271 SGD
View
B
Retailer 9
-
$8,385 SGD
View
B
Retailer 10
-
$8,928 SGD
View
B
Retailer 11
-
$9,066 SGD
View
B
Retailer 12
-
$9,138 SGD
View
Retailer 13
-
$9,502 SGD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$9,746 SGD
View
B
Retailer 15
-
$9,899 SGD
View
B
Retailer 16
-
$9,899 SGD
View
B
Retailer 17
-
$10,115 SGD
View
B
Retailer 18
-
$10,231 SGD
View
B
Retailer 19
-
$10,303 SGD
View
Retailer 20
-
$10,860 SGD
View
Price last confirmed 14 days ago
B
Retailer 21
-
$12,025 SGD
View
Retailer 22
-
$13,696 SGD
View
Price under review
Retailer 23
-
$15,635 SGD
View
Price under review
Most Expensive
NZ Jewellers
c14f0929-582a-4d2b-b69e-0df40ad5fb30 · Nov 5
$16,484 SGD
$12,905 USD
View
Price under review
23 more retailers have this diamond
Prices start from $7,427 SGDSave up to $4,597 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
$7,427 SGD