CaratHunter
Plans
Heart|Natural|GIA

1.31ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 6531769899

Certificate GIA 6531769899

Diamond specifications and retailer prices

From $3,213 CAD
As of November 6, 2026
Save $4,296 CAD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,832 CAD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.31ct natural heart diamond

This 1.31ct 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 6531769899. Listed at 20 retailers as of November 5, 2026, with a 134% 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

1.31
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.07°
Pavilion angle38.95°
OriginNatural
Grading LabGIA
CertificateGIA 6531769899
Dimensions6.66 × 7.59 × 4.49 mm
L/W Ratio1.14
Top View
6.66 mm7.59 mm1.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531769899
Side View
Table 60.0%Crown 39.07°Girdle: MED-THKPavilion 38.95°Culet: NoneDepth 59.1%

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: $7,508 CAD|Low: $3,213 CAD|High: $8,832 CAD|Avg: $4,670 CAD
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
November 6, 2026
Retailer 2$3,213 CAD
Retailer 5$3,680 CAD
Retailer 15$3,860 CAD
Retailer 14$3,976 CAD
Retailer 13$4,192 CAD
Retailer 7$4,224 CAD
Retailer 16$4,310 CAD
Retailer 9$4,455 CAD
Retailer 4$4,476 CAD
Retailer 12$4,510 CAD
Retailer 8$4,512 CAD
Retailer 3$4,850 CAD
Retailer 6$4,972 CAD
Retailer 10$5,261 CAD
Retailer 11$7,188 CAD
NZ Jewellers$7,508 CAD

33 data points across 16 retailers

20 retailers$3,213 CAD to $7,508 CAD

A
Cheapest Retailer
-
$3,213 CAD
A
Retailer 2
-
$3,680 CAD
View
A
Retailer 3
-
$3,860 CAD
View
A
Retailer 4
-
$3,912 CAD
View
A
Retailer 5
-
$3,976 CAD
View
Final sale: no returns
B+
Retailer 6
-
$4,192 CAD
View
Retailer 7
-
$4,224 CAD
View
Price last confirmed 45 days ago
Retailer 8
-
$4,224 CAD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$4,310 CAD
View
B+
Retailer 10
-
$4,455 CAD
View
B+
Retailer 11
-
$4,476 CAD
View
B+
Retailer 12
-
$4,510 CAD
View
Retailer 13
-
$4,512 CAD
View
Price last confirmed 30 days ago
B+
Retailer 14
-
$4,850 CAD
View
Retailer 15
-
$4,874 CAD
View
Price last confirmed 43 days ago
B+
Retailer 16
-
$4,972 CAD
View
B+
Retailer 17
-
$5,261 CAD
View
B
Retailer 18
-
$7,188 CAD
View
B
Retailer 19
-
$7,508 CAD
View
Most Expensive
NZ Jewellers
95c02344-1a40-4209-bdc5-fe4540743353 · Sep 25
$8,832 CAD
$6,279 USD
View
Price last confirmed 42 days ago
19 more retailers have this diamond
Prices start from $3,213 CADSave up to $4,296 CAD

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
1.31ct Heart
$3,213 CAD