Round|Natural|GIA

1.01ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6492554464

Certificate GIA 6492554464

Diamond specifications and retailer prices

From $3,542 SGD
$2,771 USD
As of October 30, 2026
Save $6,244 SGD (64%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $9,787 SGD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6492554464. Listed at 24 retailers as of October 29, 2026, with prices from $3,542 to $9,787, a $6,244 spread on the same certified stone. Diamond Quarter lists it at $9,787. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6492554464
Dimensions6.40 × 6.36 × 3.96 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.40 mm6.36 mm1.01 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6492554464
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.2%

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 30
Current: $3,542 SGD|Low: $3,542 SGD|High: $8,171 SGD|Avg: $4,807 SGD|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 1$3,542 SGD
Retailer 18$3,870 SGD
Retailer 17$3,969 SGD
Retailer 2$3,991 SGD
Retailer 7$4,022 SGD
Retailer 5$4,206 SGD
Retailer 3$4,372 SGD
Retailer 12$4,656 SGD
Retailer 4$4,909 SGD
Retailer 8$4,909 SGD
Retailer 11$4,997 SGD
Retailer 15$5,075 SGD
Retailer 6$5,093 SGD
Retailer 10$5,171 SGD
Retailer 9$5,447 SGD
Retailer 16$5,544 SGD
Retailer 14$5,858 SGD
Retailer 13$8,089 SGD

30 data points across 18 retailers

24 retailers$3,542 SGD to $9,787 SGD

A
Cheapest Retailer
-
$3,542 SGD
$2,771 USD
A
Retailer 2
-
$3,870 SGD
$3,027 USD
View
Retailer 3
-
$3,969 SGD
$3,105 USD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$3,991 SGD
$3,122 USD
View
A
Retailer 5
-
$4,022 SGD
$3,146 USD
View
Final sale: no returns
B+
Retailer 6
-
$4,206 SGD
$3,290 USD
View
Retailer 7
-
$4,358 SGD
$3,409 USD
View
Price last confirmed 15 days ago
B+
Retailer 8
-
$4,372 SGD
$3,420 USD
View
Retailer 9
-
$4,373 SGD
$3,421 USD
View
Price last confirmed 43 days ago
B+
Retailer 10
-
$4,656 SGD
£2,868 GBP
View
B+
Retailer 11
-
$4,909 SGD
$3,840 USD
View
B+
Retailer 12
-
$4,909 SGD
$3,840 USD
View
B+
Retailer 13
-
$4,997 SGD
£3,078 GBP
View
Retailer 14
-
$5,047 SGD
$3,948 USD
View
Price last confirmed 43 days ago
B+
Retailer 15
-
$5,075 SGD
$3,970 USD
View
B+
Retailer 16
-
$5,093 SGD
$3,984 USD
View
Retailer 17
-
$5,171 SGD
A$6,224 AUD
View
Price last confirmed 22 days ago
Retailer 18
-
$5,447 SGD
$4,261 USD
View
Price last confirmed 8 days ago
B+
Retailer 19
-
$5,544 SGD
£3,415 GBP
View
B+
Retailer 20
-
$5,858 SGD
ZAR 74,028 ZAR
View
B
Retailer 21
-
$8,089 SGD
£4,982 GBP
View
Retailer 22
-
$8,381 SGD
$6,556 USD
View
Price last confirmed 14 days ago
Retailer 23
-
$8,412 SGD
$6,580 USD
View
Price last confirmed 43 days ago
Most Expensive
B
Diamond Quarter
1.01SI1E6464056EN · Oct 29
$9,787 SGD
£6,028 GBP
View
23 more retailers have this diamond
Prices start from $3,542 SGDSave up to $6,244 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
$3,542 SGD