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Round|Natural|GIA

1.30ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 7551135455

Certificate GIA 7551135455

Diamond specifications and retailer prices

From $5,653 AUD
As of November 6, 2026
Save $5,609 AUD (50%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,353 AUD at NZ Jewellers · As of October 14, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551135455. Listed at 20 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7551135455
Dimensions6.96 × 6.90 × 4.32 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Needle
Top View
6.96 mm6.90 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551135455
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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: Nov 6
Current: $6,785 AUD|Low: $3,954 AUD|High: $11,477 AUD|Avg: $7,428 AUD|+71.6%
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 7$5,653 AUD
Retailer 6$5,929 AUD
Retailer 4$6,091 AUD
Retailer 9$6,386 AUD
Retailer 2$6,424 AUD
Retailer 1$6,785 AUD
Retailer 19$6,798 AUD
Retailer 15$6,936 AUD
Retailer 3$6,942 AUD
Retailer 18$6,942 AUD
Retailer 11$7,009 AUD
Retailer 10$7,175 AUD
Retailer 8$7,345 AUD
Retailer 5$7,829 AUD
Retailer 13$7,864 AUD
Retailer 14$7,962 AUD
Retailer 12$8,651 AUD
Retailer 16$11,262 AUD
Retailer 17$11,431 AUD

21 data points across 19 retailers

20 retailers$5,653 AUD to $11,262 AUD

A
Cheapest Retailer
-
$5,653 AUD
B+
Retailer 2
-
$5,929 AUD
View
Final sale: no returns
B+
Retailer 3
-
$6,091 AUD
View
B+
Retailer 4
-
$6,386 AUD
View
Retailer 5
-
$6,424 AUD
View
Price last confirmed 24 days ago
B+
Retailer 6
-
$6,785 AUD
View
B+
Retailer 7
-
$6,798 AUD
View
B+
Retailer 8
-
$6,936 AUD
View
B+
Retailer 9
-
$6,942 AUD
View
B+
Retailer 10
-
$6,942 AUD
View
B
Retailer 11
-
$7,175 AUD
View
B
Retailer 12
-
$7,345 AUD
View
Retailer 13
-
$7,412 AUD
View
Price last confirmed 25 days ago
Retailer 14
-
$7,829 AUD
View
Price last confirmed 23 days ago
B+
Retailer 15
-
$7,864 AUD
View
B+
Retailer 16
-
$7,962 AUD
View
B
Retailer 17
-
$8,651 AUD
View
B
Retailer 18
-
$11,262 AUD
View
Retailer 19
-
$11,431 AUD
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
b9d3379d-b903-40f9-a188-a9709c2d832f · Oct 14
$12,353 AUD
$8,488 USD
View
Price last confirmed 23 days ago
19 more retailers have this diamond
Prices start from $5,653 AUDSave up to $5,609 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
$5,653 AUD