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Round|Natural|GIA

1.00ct E SI1 Round Natural Diamond

GD • E/SI1 • GIA 6392299025

Certificate GIA 6392299025

Diamond specifications and retailer prices

From $2,694 SGD
As of October 31, 2026
Save $5,153 SGD (66%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $7,846 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 standard cut grade and certified by GIA 6392299025. Listed at 24 retailers as of October 31, 2026, with prices from $2,694 to $7,846, a $5,153 spread on the same certified stone. NZ Jewellers lists it at $7,846. 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
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 6392299025
Dimensions6.18 × 6.14 × 4.04 mm
L/W Ratio1.01
Top View
6.18 mm6.14 mm1.00 ctE / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6392299025
Side View
Table 58.0%Crown 38.5°Girdle: THK-VTKPavilion 40.4°Culet: NoneDepth 65.5%

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 31
Current: $3,801 SGD|Low: $2,686 SGD|High: $6,310 SGD|Avg: $3,818 SGD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$2,694 SGD
Retailer 11$2,730 SGD
Retailer 2$3,361 SGD
Retailer 9$3,395 SGD
Retailer 3$3,464 SGD
Retailer 5$3,588 SGD
Retailer 1$3,801 SGD
Retailer 4$3,949 SGD
Retailer 8$4,186 SGD
Retailer 6$4,580 SGD
Retailer 7$6,259 SGD

31 data points across 11 retailers

24 retailers$2,694 SGD to $7,846 SGD

A
Cheapest Retailer
-
$2,694 SGD
A
Retailer 2
-
$2,730 SGD
View
B+
Retailer 3
-
$3,233 SGD
View
B+
Retailer 4
-
$3,361 SGD
View
B+
Retailer 5
-
$3,395 SGD
View
B+
Retailer 6
-
$3,464 SGD
View
Final sale: no returns
B+
Retailer 7
-
$3,543 SGD
View
B+
Retailer 8
-
$3,588 SGD
View
B+
Retailer 9
-
$3,666 SGD
View
B+
Retailer 10
-
$3,753 SGD
View
Retailer 11
-
$3,753 SGD
View
Price last confirmed 8 days ago
Retailer 12
-
$3,776 SGD
View
Price last confirmed 109 days ago
B+
Retailer 13
-
$3,801 SGD
View
B+
Retailer 14
-
$3,897 SGD
View
B+
Retailer 15
-
$3,934 SGD
View
B+
Retailer 16
-
$3,949 SGD
View
B+
Retailer 17
-
$4,186 SGD
View
Retailer 18
-
$4,220 SGD
View
Price last confirmed 33 days ago
B+
Retailer 19
-
$4,330 SGD
View
B
Retailer 20
-
$4,580 SGD
View
B
Retailer 21
-
$6,259 SGD
View
B
Retailer 22
-
$7,072 SGD
View
C
Retailer 23
-
$7,394 SGD
View
Most Expensive
C
NZ Jewellers
21b345b7-76c4-4d88-b70b-daf06d2a06a4 · Nov 5
$7,846 SGD
$6,143 USD
View
23 more retailers have this diamond
Prices start from $2,694 SGDSave up to $5,153 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
$2,694 SGD