CaratHunter
Plans
Round|Natural|GIA

1.00ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 6425908649

Certificate GIA 6425908649

Diamond specifications and retailer prices

From $3,535 AUD
HK$19,400 HKD
As of October 30, 2026
Save $5,319 AUD (60%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,854 AUD 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 $3,535 to $8,854, a $5,319 spread on the same certified stone. Diamond Quarter lists it at $8,854. 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: $3,560 AUD|Low: $3,539 AUD|High: $8,234 AUD|Avg: $4,922 AUD|-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 1$3,560 AUD
Retailer 3$4,306 AUD
Retailer 9$4,319 AUD
Retailer 6$4,372 AUD
Retailer 8$4,420 AUD
Retailer 10$4,490 AUD
Retailer 2$5,052 AUD
Retailer 4$5,053 AUD
Retailer 7$5,190 AUD
Retailer 5$8,179 AUD

32 data points across 10 retailers

19 retailers$3,535 AUD to $8,854 AUD

Retailer 1
-
$3,340 AUD
$2,346 USD
Price last confirmed 17 days ago
A
Retailer 2
-
$3,535 AUD
HK$19,400 HKD
View
A
Retailer 3
-
$3,560 AUD
₹238,187 INR
View
A
Retailer 4
-
$4,154 AUD
$2,918 USD
View
A
Retailer 5
-
$4,306 AUD
£2,382 GBP
View
B+
Retailer 6
-
$4,319 AUD
$3,034 USD
View
A
Retailer 7
-
$4,372 AUD
$3,071 USD
View
Retailer 8
-
$4,420 AUD
$3,105 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$4,490 AUD
$3,154 USD
View
Final sale: no returns
B+
Retailer 10
-
$4,864 AUD
$3,417 USD
View
B+
Retailer 11
-
$4,972 AUD
SGD 4,720 SGD
View
B+
Retailer 12
-
$5,052 AUD
$3,549 USD
View
B+
Retailer 13
-
$5,053 AUD
£2,795 GBP
View
B+
Retailer 14
-
$5,070 AUD
$3,562 USD
View
B+
Retailer 15
-
$5,190 AUD
€3,472 EUR
View
B
Retailer 16
-
$6,376 AUD
$4,479 USD
View
B
Retailer 17
-
$8,179 AUD
£4,524 GBP
View
B
Retailer 18
-
$8,475 AUD
$5,953 USD
View
Most Expensive
B
Diamond Quarter
1.0SI2E6449B9CDN · Oct 29
$8,854 AUD
£4,897 GBP
View
18 more retailers have this diamond
Prices start from $3,535 AUDSave up to $5,319 AUD

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
$3,535 AUD