Heart|Natural|GIA

1.20ct G SI1 Heart Natural Diamond

ID • G/SI1 • GIA 6541270102

Certificate GIA 6541270102

Diamond specifications and retailer prices

From $1,861 USD
As of November 6, 2026
Save $2,554 USD (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,415 USD at NZ Jewellers · As of November 5, 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 6541270102. Listed at 17 retailers as of November 5, 2026, with prices from $1,861 to $4,415, a $2,554 spread on the same certified stone. NZ Jewellers lists it at $4,415. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle41.92°
OriginNatural
Grading LabGIA
CertificateGIA 6541270102
Dimensions7.45 × 6.15 × 4.27 mm
L/W Ratio1.21
Top View
7.45 mm6.15 mm1.20 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6541270102
Side View
Table 65.0%Crown 34°Girdle: Extremely ThickPavilion 41.92°Culet: NoneDepth 57.4%

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 6
Current: $4,415 USD|Low: $1,861 USD|High: $4,549 USD|Avg: $2,524 USD|-2.9%
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
November 6, 2026
Retailer 8$1,861 USD
Retailer 6$1,949 USD
Retailer 9$1,997 USD
Retailer 5$2,087 USD
Retailer 3$2,112 USD
Retailer 15$2,135 USD
Retailer 2$2,138 USD
Retailer 7$2,176 USD
Retailer 4$2,209 USD
Retailer 11$2,237 USD
Retailer 12$2,376 USD
Retailer 13$2,577 USD
Retailer 10$2,796 USD
Retailer 14$3,689 USD
NZ Jewellers$4,415 USD

28 data points across 15 retailers

17 retailers$1,861 USD to $4,415 USD

A
Cheapest Retailer
-
$1,861 USD
A
Retailer 2
-
$1,949 USD
View
Final sale: no returns
A
Retailer 3
-
$1,997 USD
View
A
Retailer 4
-
$2,087 USD
View
A
Retailer 5
-
$2,112 USD
View
A
Retailer 6
-
$2,135 USD
View
A
Retailer 7
-
$2,138 USD
View
A
Retailer 8
-
$2,150 USD
View
Retailer 9
-
$2,176 USD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$2,209 USD
View
A
Retailer 11
-
$2,237 USD
View
A
Retailer 12
-
$2,376 USD
View
B+
Retailer 13
-
$2,577 USD
View
Retailer 14
-
$2,675 USD
View
Price last confirmed 31 days ago
B+
Retailer 15
-
$2,796 USD
View
B
Retailer 16
-
$3,689 USD
View
Most Expensive
B
NZ Jewellers
4380634e-7ea0-4409-b831-d3ffec60d129 · Nov 5
$4,415 USD
View
16 more retailers have this diamond
Prices start from $1,861 USDSave up to $2,554 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
$1,861 USD