Heart|Natural|GIA

1.20ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 6545346217

Certificate GIA 6545346217

Diamond specifications and retailer prices

From $1,625 USD
As of November 6, 2026
Save $2,125 USD (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,763 USD at NZ Jewellers · As of October 6, 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 G 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 6545346217. Listed at 22 retailers as of November 4, 2026, with a 131% 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

1.20
Carat
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6545346217
Dimensions6.56 × 7.55 × 4.33 mm
L/W Ratio1.15
Top View
6.56 mm7.55 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6545346217
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 57.4%

Caratlytics Score

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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 6
Current: $1,716 USD|Low: $1,612 USD|High: $4,039 USD|Avg: $2,241 USD|-8.8%
Retailer 1
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 6, 2026
Retailer 12$1,625 USD
Retailer 1$1,716 USD
Retailer 5$1,980 USD
Retailer 14$2,032 USD
Retailer 6$2,050 USD
Retailer 2$2,065 USD
Retailer 10$2,074 USD
Retailer 7$2,082 USD
Retailer 13$2,146 USD
Retailer 3$2,250 USD
Retailer 4$2,262 USD
Retailer 8$2,331 USD
Retailer 9$2,619 USD
Retailer 11$3,750 USD

27 data points across 14 retailers

22 retailers$1,625 USD to $3,750 USD

A
Cheapest Retailer
-
$1,625 USD
A
Retailer 2
-
$1,716 USD
View
A
Retailer 3
-
$1,980 USD
View
Final sale: no returns
A
Retailer 4
-
$2,032 USD
View
A
Retailer 5
-
$2,050 USD
View
A
Retailer 6
-
$2,065 USD
View
A
Retailer 7
-
$2,074 USD
View
A
Retailer 8
-
$2,082 USD
View
Retailer 9
-
$2,146 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$2,221 USD
View
A
Retailer 11
-
$2,250 USD
View
A
Retailer 12
-
$2,262 USD
View
Retailer 13
-
$2,278 USD
View
Price last confirmed 25 days ago
Retailer 14
-
$2,278 USD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
$2,331 USD
View
Retailer 16
-
$2,453 USD
View
Price last confirmed 36 days ago
B+
Retailer 17
-
$2,507 USD
View
B+
Retailer 18
-
$2,619 USD
View
Retailer 19
-
$2,629 USD
View
Price last confirmed 28 days ago
Retailer 20
-
$2,801 USD
View
Price last confirmed 31 days ago
B
Retailer 21
-
$3,750 USD
View
Most Expensive
NZ Jewellers
2edcbfdd-1395-45a7-afdd-932752c2ff52 · Oct 6
$4,763 USD
View
Price last confirmed 31 days ago
21 more retailers have this diamond
Prices start from $1,625 USDSave up to $2,125 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
$1,625 USD