Heart|Natural|GIA

1.20ct I SI1 Heart Natural Diamond

ID • I/SI1 • GIA 6515647551

Certificate GIA 6515647551

Diamond specifications and retailer prices

From $2,122 USD
As of November 4, 2026
Save $3,182 USD (60%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,304 USD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-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 6515647551. Listed at 15 retailers as of November 3, 2026, with prices from $2,122 to $5,304, a $3,182 spread on the same certified stone. NZ Jewellers lists it at $5,304. 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

1.20
Carat
I
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6515647551
Dimensions7.54 × 6.63 × 4.31 mm
L/W Ratio1.14
Top View
7.54 mm6.63 mm1.20 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6515647551
Side View
Table 64.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 57.2%

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: Nov 4
Current: $5,304 USD|Low: $2,122 USD|High: $5,334 USD|Avg: $2,851 USD|-0.6%
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
November 5, 2026
Retailer 14$2,122 USD
Retailer 5$2,225 USD
Retailer 9$2,299 USD
Retailer 4$2,311 USD
Retailer 13$2,349 USD
Retailer 11$2,390 USD
Retailer 10$2,405 USD
Retailer 8$2,470 USD
Retailer 12$2,652 USD
Retailer 2$2,684 USD
Retailer 6$2,873 USD
Retailer 3$3,135 USD
Retailer 7$4,433 USD
NZ Jewellers$5,304 USD

33 data points across 14 retailers

15 retailers$2,122 USD to $5,304 USD

A
Cheapest Retailer
-
$2,122 USD
Final sale: no returns
A
Retailer 2
-
$2,225 USD
View
B+
Retailer 3
-
$2,299 USD
View
B+
Retailer 4
-
$2,311 USD
View
B+
Retailer 5
-
$2,349 USD
View
B+
Retailer 6
-
$2,390 USD
View
B+
Retailer 7
-
$2,405 USD
View
B+
Retailer 8
-
$2,438 USD
View
B+
Retailer 9
-
$2,470 USD
View
B+
Retailer 10
-
$2,652 USD
View
B+
Retailer 11
-
$2,684 USD
View
Retailer 12
-
$2,873 USD
View
Price last confirmed 29 days ago
B+
Retailer 13
-
$3,135 USD
View
B
Retailer 14
-
$4,433 USD
View
Most Expensive
B
NZ Jewellers
0295613a-2162-44ef-ae4c-6b601a5228dc · Nov 3
$5,304 USD
View
14 more retailers have this diamond
Prices start from $2,122 USDSave up to $3,182 USD

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
1.20ct Heart
$2,122 USD