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Round|Natural|GIA

1.00ct E SI1 Round Natural Diamond

VG • E/SI1 • GIA 6552427355

Certificate GIA 6552427355

Diamond specifications and retailer prices

From $2,786 SGD
As of November 5, 2026
Save $3,579 SGD (56%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,771 SGD at NZ Jewellers · As of October 6, 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 6552427355. Listed at 23 retailers as of November 4, 2026, with a 128% 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

1.00
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 6552427355
Dimensions6.17 × 6.23 × 3.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.17 mm6.23 mm1.00 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552427355
Side View
Table 58.0%Crown 38.5°Girdle: STK-THKPavilion 40°Culet: NDepth 64.3%

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 5
Current: $4,016 SGD|Low: $2,786 SGD|High: $6,577 SGD|Avg: $3,848 SGD|-2.0%
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
Retailer 19
November 6, 2026
Retailer 8$2,786 SGD
Retailer 16$2,893 SGD
Retailer 2$3,096 SGD
Retailer 9$3,137 SGD
Retailer 5$3,179 SGD
Retailer 3$3,192 SGD
Retailer 19$3,205 SGD
Retailer 18$3,404 SGD
Retailer 13$3,649 SGD
Retailer 4$3,947 SGD
Retailer 7$3,947 SGD
Retailer 1$4,016 SGD
Retailer 17$4,075 SGD
Retailer 10$4,151 SGD
Retailer 12$4,179 SGD
Retailer 11$4,511 SGD
Retailer 14$4,658 SGD
Retailer 6$4,674 SGD
Retailer 15$6,365 SGD

24 data points across 19 retailers

23 retailers$2,786 SGD to $6,365 SGD

A
Cheapest Retailer
-
$2,786 SGD
A
Retailer 2
-
$2,893 SGD
View
A
Retailer 3
-
$3,096 SGD
View
A
Retailer 4
-
$3,179 SGD
View
B+
Retailer 5
-
$3,192 SGD
View
Final sale: no returns
A
Retailer 6
-
$3,205 SGD
View
A
Retailer 7
-
$3,404 SGD
View
Retailer 8
-
$3,520 SGD
View
Price last confirmed 28 days ago
Retailer 9
-
$3,520 SGD
View
Price last confirmed 25 days ago
A
Retailer 10
-
$3,649 SGD
View
Retailer 11
-
$3,739 SGD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
$3,947 SGD
View
B+
Retailer 13
-
$3,947 SGD
View
B+
Retailer 14
-
$4,016 SGD
View
Retailer 15
-
$4,063 SGD
View
Price last confirmed 28 days ago
B+
Retailer 16
-
$4,075 SGD
View
Retailer 17
-
$4,151 SGD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
$4,179 SGD
View
Retailer 19
-
$4,511 SGD
View
Price last confirmed 14 days ago
B+
Retailer 20
-
$4,658 SGD
View
B+
Retailer 21
-
$4,674 SGD
View
B
Retailer 22
-
$6,365 SGD
View
Most Expensive
NZ Jewellers
f2188a06-b75c-43bc-9425-fcedfc2a0820 · Oct 6
$6,771 SGD
$5,301 USD
View
Price last confirmed 31 days ago
22 more retailers have this diamond
Prices start from $2,786 SGDSave up to $3,579 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
$2,786 SGD