Heart|Natural|GIA

1.21ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6157010233

Certificate GIA 6157010233

Diamond specifications and retailer prices

From $5,525 CAD
As of November 6, 2026
Save $6,794 CAD (55%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $12,319 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6157010233. Listed at 9 retailers as of November 5, 2026, with prices from $5,525 to $12,319, a $6,794 spread on the same certified stone. NZ Jewellers lists it at $12,319. 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

1.21
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6157010233
Dimensions7.33 × 7.70 × 3.58 mm
L/W Ratio1.05
Top View
7.33 mm7.70 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6157010233
Side View
Table 58.0%CrownGirdle: MED-EXTPavilionCulet: NoneDepth 46.5%

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: Nov 6
Current: $12,319 CAD|Low: $5,525 CAD|High: $12,319 CAD|Avg: $8,159 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$5,525 CAD
Retailer 6$6,406 CAD
Retailer 7$6,406 CAD
Retailer 3$7,030 CAD
Retailer 8$7,392 CAD
Retailer 2$7,957 CAD
Retailer 4$11,263 CAD
NZ Jewellers$12,319 CAD

44 data points across 8 retailers

9 retailers$5,525 CAD to $12,319 CAD

B+
Cheapest Retailer
-
$5,525 CAD
B
Retailer 2
-
$6,406 CAD
View
B
Retailer 3
-
$6,406 CAD
View
B
Retailer 4
-
$7,030 CAD
View
B
Retailer 5
-
$7,392 CAD
View
B
Retailer 6
-
$7,957 CAD
View
B
Retailer 7
-
$10,336 CAD
View
B
Retailer 8
-
$11,263 CAD
View
Most Expensive
B
NZ Jewellers
4d776d7f-8c59-4e0a-82a6-bbebfabea9df · Nov 5
$12,319 CAD
$8,758 USD
View
8 more retailers have this diamond
Prices start from $5,525 CADSave up to $6,794 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+
1.21ct Heart
$5,525 CAD