Round|Natural|GIA

1.30ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7551049922

Certificate GIA 7551049922

Diamond specifications and retailer prices

From $5,210 AUD
As of November 6, 2026
Save $5,171 AUD (50%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $11,387 AUD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551049922. Listed at 22 retailers as of November 4, 2026, with a 99% 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

1.30
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7551049922
Dimensions6.96 × 6.90 × 4.33 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural, Natural
Top View
6.96 mm6.90 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551049922
Side View
Table 59.0%Crown 36°Girdle: ThinPavilion 41°Culet: NoneDepth 62.5%

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: Nov 6
Current: $7,009 AUD|Low: $5,027 AUD|High: $10,536 AUD|Avg: $6,989 AUD|-1.5%
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 18$5,210 AUD
Retailer 17$5,465 AUD
Retailer 16$5,640 AUD
Retailer 7$5,902 AUD
Retailer 19$5,982 AUD
Retailer 10$6,015 AUD
Retailer 2$6,212 AUD
Retailer 6$6,536 AUD
Retailer 8$6,536 AUD
Retailer 13$6,578 AUD
Retailer 9$6,855 AUD
Retailer 3$6,902 AUD
Retailer 4$6,971 AUD
Retailer 1$7,009 AUD
Retailer 5$7,542 AUD
Retailer 12$7,974 AUD
Retailer 11$8,409 AUD
Retailer 15$9,547 AUD
Retailer 14$10,381 AUD

35 data points across 19 retailers

22 retailers$5,210 AUD to $10,381 AUD

A
Cheapest Retailer
-
$5,210 AUD
A
Retailer 2
-
$5,465 AUD
View
Final sale: no returns
B+
Retailer 3
-
$5,640 AUD
View
B+
Retailer 4
-
$5,902 AUD
View
B+
Retailer 5
-
$5,982 AUD
View
B+
Retailer 6
-
$6,212 AUD
View
Retailer 7
-
$6,536 AUD
View
Price last confirmed 57 days ago
Retailer 8
-
$6,536 AUD
View
Price last confirmed 22 days ago
Retailer 9
-
$6,536 AUD
View
Price last confirmed 20 days ago
Retailer 10
-
$6,536 AUD
View
Price last confirmed 23 days ago
B+
Retailer 11
-
$6,578 AUD
View
B+
Retailer 12
-
$6,855 AUD
View
B+
Retailer 13
-
$6,902 AUD
View
Retailer 14
-
$6,971 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$7,009 AUD
View
Retailer 16
-
$7,542 AUD
View
Price last confirmed 20 days ago
Retailer 17
-
$7,542 AUD
View
Price last confirmed 61 days ago
B
Retailer 18
-
$7,974 AUD
View
B
Retailer 19
-
$9,547 AUD
View
B
Retailer 20
-
$10,381 AUD
View
Retailer 21
-
$11,387 AUD
View
Price last confirmed 58 days ago
Most Expensive
NZ Jewellers
3573f6c1-b28c-4b65-88b6-f336e2c3e343 · Oct 17
$11,387 AUD
$7,824 USD
View
Price last confirmed 20 days ago
21 more retailers have this diamond
Prices start from $5,210 AUDSave up to $5,171 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
1.30ct Round
$5,210 AUD