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Round|Natural|GIA

1.00ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 6425908649

Certificate GIA 6425908649

Diamond specifications and retailer prices

From $3,175 SGD
HK$19,400 HKD
As of October 30, 2026
Save $4,776 SGD (60%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,951 SGD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6425908649. Listed at 19 retailers as of October 29, 2026, with prices from $3,175 to $7,951, a $4,776 spread on the same certified stone. Diamond Quarter lists it at $7,951. 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

1.00
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6425908649
Dimensions6.51 × 6.47 × 3.87 mm
L/W Ratio1.01
Top View
6.51 mm6.47 mm1.00 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6425908649
Side View
Table 60.0%Crown 32°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.6%

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: $3,197 SGD|Low: $3,175 SGD|High: $7,394 SGD|Avg: $4,253 SGD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$3,175 SGD
Retailer 1$3,197 SGD
Retailer 3$3,867 SGD
Retailer 9$3,879 SGD
Retailer 6$3,926 SGD
Retailer 8$3,969 SGD
Retailer 10$4,032 SGD
Retailer 4$4,537 SGD
Retailer 7$4,661 SGD
Retailer 5$7,345 SGD

32 data points across 10 retailers

19 retailers$3,175 SGD to $7,951 SGD

Retailer 1
-
$2,999 SGD
$2,346 USD
Price last confirmed 17 days ago
A
Retailer 2
-
$3,175 SGD
HK$19,400 HKD
View
A
Retailer 3
-
$3,197 SGD
₹238,187 INR
View
A
Retailer 4
-
$3,730 SGD
$2,918 USD
View
A
Retailer 5
-
$3,867 SGD
£2,382 GBP
View
B+
Retailer 6
-
$3,879 SGD
$3,034 USD
View
A
Retailer 7
-
$3,926 SGD
$3,071 USD
View
Retailer 8
-
$3,969 SGD
$3,105 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$4,032 SGD
$3,154 USD
View
Final sale: no returns
B+
Retailer 10
-
$4,368 SGD
$3,417 USD
View
B+
Retailer 11
-
$4,465 SGD
View
B+
Retailer 12
-
$4,537 SGD
$3,549 USD
View
B+
Retailer 13
-
$4,537 SGD
£2,795 GBP
View
B+
Retailer 14
-
$4,553 SGD
$3,562 USD
View
B+
Retailer 15
-
$4,661 SGD
€3,472 EUR
View
B
Retailer 16
-
$5,726 SGD
$4,479 USD
View
B
Retailer 17
-
$7,345 SGD
£4,524 GBP
View
B
Retailer 18
-
$7,610 SGD
$5,953 USD
View
Most Expensive
B
Diamond Quarter
1.0SI2E6449B9CDN · Oct 29
$7,951 SGD
£4,897 GBP
View
18 more retailers have this diamond
Prices start from $3,175 SGDSave up to $4,776 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
$3,175 SGD