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Heart|Natural|GIA

1.25ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 7541100620

Certificate GIA 7541100620

Diamond specifications and retailer prices

From $2,381 AUD
As of October 30, 2026
Save $4,220 AUD (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,601 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.25ct natural heart diamond

This 1.25ct natural heart 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 stated by the retailer rather than the lab and certified by GIA 7541100620. Listed at 17 retailers as of October 30, 2026, with prices from $2,381 to $6,601, a $4,220 spread on the same certified stone. NZ Jewellers lists it at $6,601. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7541100620
Dimensions7.40 × 6.57 × 4.31 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
7.40 mm6.57 mm1.25 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7541100620
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $6,601 AUD|Low: $2,367 AUD|High: $6,601 AUD|Avg: $3,573 AUD
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
October 31, 2026
Retailer 13$2,381 AUD
Retailer 9$2,494 AUD
Retailer 7$2,852 AUD
Retailer 14$3,089 AUD
Retailer 3$3,127 AUD
Retailer 6$3,157 AUD
Retailer 10$3,157 AUD
Retailer 5$3,179 AUD
Retailer 18$3,303 AUD
Retailer 15$3,305 AUD
Retailer 17$3,439 AUD
Retailer 12$3,464 AUD
Retailer 19$3,623 AUD
Retailer 4$3,644 AUD
Retailer 11$3,679 AUD
Retailer 8$3,691 AUD
Retailer 2$3,880 AUD
Retailer 16$5,561 AUD
NZ Jewellers$6,601 AUD

20 data points across 19 retailers

17 retailers$2,381 AUD to $6,601 AUD

A
Cheapest Retailer
-
$2,381 AUD
A
Retailer 2
-
$2,852 AUD
View
A
Retailer 3
-
$3,089 AUD
View
A
Retailer 4
-
$3,127 AUD
View
A
Retailer 5
-
$3,157 AUD
View
Retailer 6
-
$3,157 AUD
View
Price last confirmed 11 days ago
A
Retailer 7
-
$3,179 AUD
View
A
Retailer 8
-
$3,303 AUD
View
A
Retailer 9
-
$3,305 AUD
View
A
Retailer 10
-
$3,439 AUD
View
A
Retailer 11
-
$3,464 AUD
View
A
Retailer 12
-
$3,623 AUD
View
Retailer 13
-
$3,644 AUD
View
Price last confirmed 8 days ago
A
Retailer 14
-
$3,691 AUD
View
A
Retailer 15
-
$3,880 AUD
View
Retailer 16
-
$5,561 AUD
View
Price last confirmed 14 days ago
Most Expensive
B
NZ Jewellers
8d642ade-dadc-4442-92bd-18b8905ee129 · Oct 30
$6,601 AUD
$4,610 USD
View
16 more retailers have this diamond
Prices start from $2,381 AUDSave up to $4,220 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 Heart
$2,381 AUD