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Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6552615902

Certificate GIA 6552615902

Diamond specifications and retailer prices

From $2,697 AUD
HK$14,800 HKD
As of October 29, 2026
Save $1,675 AUD (38%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $7,616 AUD 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552615902. Listed at 24 retailers as of October 29, 2026, with a 62% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6552615902
Dimensions6.34 × 6.40 × 3.91 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.34 mm6.40 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552615902
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.4%

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 29
Current: $3,103 AUD|Low: $2,622 AUD|High: $6,460 AUD|Avg: $3,824 AUD|-8.9%
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
October 30, 2026
Retailer 14$2,697 AUD
Retailer 7$2,717 AUD
Retailer 2$2,927 AUD
Retailer 16$2,991 AUD
Retailer 1$3,103 AUD
Retailer 18$3,289 AUD
Retailer 4$3,410 AUD
Retailer 15$3,461 AUD
Retailer 8$3,701 AUD
Retailer 17$3,730 AUD
Retailer 19$3,730 AUD
Retailer 3$3,858 AUD
Retailer 12$3,941 AUD
Retailer 11$4,082 AUD
Retailer 5$4,175 AUD
Retailer 6$4,203 AUD
Retailer 13$4,372 AUD
Retailer 10$4,424 AUD
Retailer 9$6,333 AUD

25 data points across 19 retailers

24 retailers$2,697 AUD to $4,372 AUD

A
Cheapest Retailer
-
$2,697 AUD
HK$14,800 HKD
Retailer 2
-
$2,717 AUD
₹181,736 INR
View
Price last confirmed 17 days ago
A
Retailer 3
-
$2,869 AUD
$2,015 USD
View
A
Retailer 4
-
$2,927 AUD
$2,056 USD
View
A
Retailer 5
-
$2,991 AUD
$2,101 USD
View
Final sale: no returns
A
Retailer 6
-
$3,103 AUD
$2,180 USD
View
A
Retailer 7
-
$3,289 AUD
$2,310 USD
View
B+
Retailer 8
-
$3,410 AUD
$2,395 USD
View
B+
Retailer 9
-
$3,461 AUD
£1,914 GBP
View
B+
Retailer 10
-
$3,558 AUD
$2,499 USD
View
Retailer 11
-
$3,576 AUD
$2,512 USD
View
Price last confirmed 16 days ago
Retailer 12
-
$3,701 AUD
SGD 3,513 SGD
View
Price last confirmed 16 days ago
Retailer 13
-
$3,710 AUD
$2,606 USD
View
Price last confirmed 38 days ago
B+
Retailer 14
-
$3,730 AUD
$2,620 USD
View
B+
Retailer 15
-
$3,730 AUD
$2,620 USD
View
B+
Retailer 16
-
$3,858 AUD
$2,710 USD
View
B+
Retailer 17
-
$3,941 AUD
£2,180 GBP
View
Retailer 18
-
$4,082 AUD
View
Price last confirmed 24 days ago
Retailer 19
-
$4,204 AUD
$2,953 USD
View
Price last confirmed 33 days ago
B+
Retailer 20
-
$4,372 AUD
$3,071 USD
View
Retailer 21
-
$4,424 AUD
ZAR 50,202 ZAR
View
Price last confirmed 20 days ago
Retailer 22
-
$6,333 AUD
£3,503 GBP
View
Price last confirmed 17 days ago
Retailer 23
-
$7,616 AUD
$5,350 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
31f90981-d8e1-4b67-a371-643a28bf8e65 · Oct 6
$7,616 AUD
$5,350 USD
View
Price last confirmed 26 days ago
23 more retailers have this diamond
Prices start from $2,697 AUDSave up to $1,675 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
$2,697 AUD