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Round|Natural|GIA

1.00ct E SI1 Round Natural Diamond

VG • E/SI1 • GIA 7556341509

Certificate GIA 7556341509

Diamond specifications and retailer prices

From $2,681 SGD
As of November 4, 2026
Save $4,499 SGD (63%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $7,180 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 7556341509. Listed at 27 retailers as of November 4, 2026, with prices from $2,681 to $7,180, a $4,499 spread on the same certified stone. NZ Jewellers lists it at $7,180. 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

1.00
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7556341509
Dimensions6.49 × 6.42 × 3.83 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Needle, Natural
Top View
6.49 mm6.42 mm1.00 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7556341509
Side View
Table 64.0%Crown 31.5°Girdle: THN-THKPavilion 41.2°Culet: NoneDepth 59.3%

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: Nov 4
Current: $7,180 SGD|Low: $2,664 SGD|High: $7,180 SGD|Avg: $3,806 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
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Retailer 16
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Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
November 6, 2026
Retailer 3$2,681 SGD
Retailer 23$2,691 SGD
Retailer 11$3,034 SGD
Retailer 17$3,039 SGD
Retailer 24$3,068 SGD
Retailer 15$3,076 SGD
Retailer 12$3,170 SGD
Retailer 20$3,284 SGD
Retailer 4$3,385 SGD
Retailer 8$3,412 SGD
Retailer 6$3,435 SGD
Retailer 9$3,435 SGD
Retailer 10$3,444 SGD
Retailer 7$3,566 SGD
Retailer 13$3,613 SGD
Retailer 5$3,615 SGD
Retailer 2$3,734 SGD
Retailer 19$3,932 SGD
Retailer 14$3,963 SGD
Retailer 21$4,022 SGD
Retailer 25$4,182 SGD
Retailer 22$4,192 SGD
Retailer 16$5,052 SGD
Retailer 18$5,192 SGD
Retailer 26$5,999 SGD
NZ Jewellers$7,180 SGD

20 data points across 26 retailers

27 retailers$2,681 SGD to $7,180 SGD

A
Cheapest Retailer
-
$2,681 SGD
A
Retailer 2
-
$2,691 SGD
View
A
Retailer 3
-
$3,034 SGD
View
A
Retailer 4
-
$3,039 SGD
View
A
Retailer 5
-
$3,068 SGD
View
A
Retailer 6
-
$3,076 SGD
View
A
Retailer 7
-
$3,170 SGD
View
Final sale: no returns
A
Retailer 8
-
$3,284 SGD
View
B+
Retailer 9
-
$3,385 SGD
View
A
Retailer 10
-
$3,412 SGD
View
Retailer 11
-
$3,435 SGD
View
Price last confirmed 8 days ago
A
Retailer 12
-
$3,435 SGD
View
A
Retailer 13
-
$3,444 SGD
View
B+
Retailer 14
-
$3,566 SGD
View
A
Retailer 15
-
$3,613 SGD
View
B+
Retailer 16
-
$3,615 SGD
View
B+
Retailer 17
-
$3,734 SGD
View
B+
Retailer 18
-
$3,932 SGD
View
B+
Retailer 19
-
$3,963 SGD
View
B+
Retailer 20
-
$4,022 SGD
View
Retailer 21
-
$4,038 SGD
View
Price last confirmed 30 days ago
B+
Retailer 22
-
$4,182 SGD
View
B+
Retailer 23
-
$4,192 SGD
View
B
Retailer 24
-
$5,052 SGD
View
B
Retailer 25
-
$5,192 SGD
View
B
Retailer 26
-
$5,999 SGD
View
Most Expensive
B
NZ Jewellers
5902ba5c-c8b1-40b6-acc0-31f7ddff97ce · Nov 5
$7,180 SGD
$5,621 USD
View
26 more retailers have this diamond
Prices start from $2,681 SGDSave up to $4,499 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
1.00ct Round
$2,681 SGD