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Round|Natural|GIA

1.25ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6561318924

Certificate GIA 6561318924

Diamond specifications and retailer prices

From $5,851 AUD
As of November 4, 2026
Save $6,928 AUD (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $12,779 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6561318924. Listed at 22 retailers as of November 4, 2026, with prices from $5,851 to $12,779, a $6,928 spread on the same certified stone. NZ Jewellers lists it at $12,779. 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

1.25
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6561318924
Dimensions6.80 × 6.85 × 4.27 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
6.80 mm6.85 mm1.25 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561318924
Side View
Table 58.0%Crown 36°Girdle: STK-STKPavilion 40.8°Culet: NoneDepth 62.6%

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: Nov 4
Current: $12,779 AUD|Low: $5,795 AUD|High: $13,176 AUD|Avg: $8,724 AUD|-3.0%
NZ Jewellers
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
Retailer 20
Retailer 21
November 5, 2026
Retailer 3$5,851 AUD
Retailer 16$5,887 AUD
Retailer 8$6,664 AUD
Retailer 10$7,053 AUD
Retailer 4$7,164 AUD
Retailer 13$7,305 AUD
Retailer 18$7,332 AUD
Retailer 7$7,571 AUD
Retailer 11$7,641 AUD
Retailer 20$7,641 AUD
Retailer 21$7,641 AUD
Retailer 9$7,858 AUD
Retailer 17$8,334 AUD
Retailer 15$8,335 AUD
Retailer 5$8,815 AUD
Retailer 14$9,111 AUD
Retailer 2$9,321 AUD
Retailer 6$11,097 AUD
Retailer 19$11,408 AUD
Retailer 12$12,562 AUD
NZ Jewellers$12,779 AUD

24 data points across 21 retailers

22 retailers$5,851 AUD to $12,779 AUD

A
Cheapest Retailer
-
$5,851 AUD
A
Retailer 2
-
$5,887 AUD
View
A
Retailer 3
-
$6,664 AUD
View
A
Retailer 4
-
$7,053 AUD
View
Final sale: no returns
B+
Retailer 5
-
$7,164 AUD
View
A
Retailer 6
-
$7,305 AUD
View
A
Retailer 7
-
$7,332 AUD
View
B+
Retailer 8
-
$7,571 AUD
View
Retailer 9
-
$7,641 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$7,641 AUD
View
B+
Retailer 11
-
$7,641 AUD
View
Retailer 12
-
$7,660 AUD
View
Price last confirmed 14 days ago
B+
Retailer 13
-
$7,858 AUD
View
Retailer 14
-
$7,890 AUD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
$8,334 AUD
View
B+
Retailer 16
-
$8,335 AUD
View
B+
Retailer 17
-
$8,815 AUD
View
B+
Retailer 18
-
$9,321 AUD
View
B
Retailer 19
-
$11,097 AUD
View
B
Retailer 20
-
$11,408 AUD
View
Retailer 21
-
$12,562 AUD
View
Price last confirmed 12 days ago
Most Expensive
B
NZ Jewellers
5dae9f95-50c8-47f9-ae5f-26166b5436bc · Nov 5
$12,779 AUD
$8,946 USD
View
21 more retailers have this diamond
Prices start from $5,851 AUDSave up to $6,928 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
1.25ct Round
$5,851 AUD