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Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 6431422487

Certificate GIA 6431422487

Diamond specifications and retailer prices

From $5,746 CAD
SGD 5,559 SGD
As of October 31, 2026
Save $6,208 CAD (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,955 CAD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.7ct natural heart diamond

This 1.7ct natural heart sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6431422487. Listed at 18 retailers as of October 30, 2026, with prices from $5,746 to $11,955, a $6,208 spread on the same certified stone. NZ Jewellers lists it at $11,955. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
J
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle40.7°
Pavilion angle41.9°
OriginNatural
Grading LabGIA
CertificateGIA 6431422487
Dimensions8.06 × 7.23 × 4.33 mm
L/W Ratio1.11
Top View
8.06 mm7.23 mm1.70 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6431422487
Side View
Table 56.0%Crown 40.7°Girdle: STK-ETKPavilion 41.9°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $11,955 CAD|Low: $5,746 CAD|High: $11,955 CAD|Avg: $7,270 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
Retailer 17
Retailer 18
November 1, 2026
Retailer 4$5,746 CAD
Retailer 18$5,773 CAD
Retailer 10$5,984 CAD
Retailer 5$6,334 CAD
Retailer 3$6,461 CAD
Retailer 2$6,603 CAD
Retailer 12$6,824 CAD
Retailer 15$6,862 CAD
Retailer 16$6,862 CAD
Retailer 17$6,862 CAD
Retailer 6$6,918 CAD
Retailer 7$7,010 CAD
Retailer 9$7,073 CAD
Retailer 8$7,250 CAD
Retailer 14$7,918 CAD
Retailer 13$8,435 CAD
Retailer 11$10,930 CAD
NZ Jewellers$11,955 CAD

32 data points across 18 retailers

18 retailers$5,746 CAD to $11,955 CAD

B+
Cheapest Retailer
-
$5,746 CAD
SGD 5,559 SGD
B+
Retailer 2
-
$5,773 CAD
$4,133 USD
View
B+
Retailer 3
-
$5,984 CAD
$4,284 USD
View
B+
Retailer 4
-
$6,334 CAD
$4,534 USD
View
Final sale: no returns
B+
Retailer 5
-
$6,461 CAD
$4,625 USD
View
B+
Retailer 6
-
$6,603 CAD
£3,722 GBP
View
B+
Retailer 7
-
$6,824 CAD
£3,846 GBP
View
B
Retailer 8
-
$6,862 CAD
$4,912 USD
View
B
Retailer 9
-
$6,862 CAD
$4,912 USD
View
Retailer 10
-
$6,862 CAD
$4,912 USD
View
Price last confirmed 8 days ago
Retailer 11
-
$6,918 CAD
A$7,619 AUD
View
Price last confirmed 23 days ago
B
Retailer 12
-
$7,010 CAD
$5,018 USD
View
B
Retailer 13
-
$7,073 CAD
$5,064 USD
View
B
Retailer 14
-
$7,250 CAD
$5,190 USD
View
B
Retailer 15
-
$7,918 CAD
$5,668 USD
View
B
Retailer 16
-
$8,435 CAD
ZAR 97,549 ZAR
View
B
Retailer 17
-
$10,930 CAD
£6,161 GBP
View
Most Expensive
C
NZ Jewellers
9be0e4a2-93b6-416f-97c9-bfaaaf15adb7 · Oct 30
$11,955 CAD
$8,558 USD
View
17 more retailers have this diamond
Prices start from $5,746 CADSave up to $6,208 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.

B+
1.70ct Heart
$5,746 CAD