Heart|Natural|GIA

1.51ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 7421670166

Certificate GIA 7421670166

Diamond specifications and retailer prices

From $7,605 CAD
$5,444 USD
As of October 31, 2026
Save $3,072 CAD (29%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $10,677 CAD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7421670166. Listed at 13 retailers as of October 31, 2026, with prices from $7,605 to $10,677, a $3,072 spread on the same certified stone. 77 Diamonds lists it at $10,677. 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

1.51
Carat
G
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7421670166
Dimensions6.71 × 7.98 × 4.75 mm
L/W Ratio1.19
Top View
6.71 mm7.98 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7421670166
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.5%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $10,677 CAD|Low: $7,496 CAD|High: $10,746 CAD|Avg: $9,261 CAD|+1.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4$7,605 CAD
Retailer 3$8,929 CAD
Retailer 2$9,819 CAD
77 Diamonds$10,677 CAD

39 data points across 4 retailers

13 retailers$7,605 CAD to $10,677 CAD

B+
Cheapest Retailer
-
$7,605 CAD
$5,444 USD
B+
Retailer 2
-
$7,892 CAD
$5,650 USD
View
B+
Retailer 3
-
$8,290 CAD
A$9,130 AUD
View
B+
Retailer 4
-
$8,418 CAD
$6,026 USD
View
B+
Retailer 5
-
$8,521 CAD
$6,100 USD
View
B+
Retailer 6
-
$8,929 CAD
$6,392 USD
View
B
Retailer 7
-
$9,541 CAD
$6,830 USD
View
B
Retailer 8
-
$9,541 CAD
$6,830 USD
View
B+
Retailer 9
-
$9,819 CAD
$7,029 USD
View
Retailer 10
-
$9,819 CAD
$7,029 USD
View
Price last confirmed 18 days ago
Retailer 11
-
$9,819 CAD
$7,029 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$9,862 CAD
$7,060 USD
View
Most Expensive
B
77 Diamonds
HSZCTZJ2TK3 · Nov 2
$10,677 CAD
£6,018 GBP
View
12 more retailers have this diamond
Prices start from $7,605 CADSave up to $3,072 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+
1.51ct Heart
$7,605 CAD