Heart|Natural|GIA

1.20ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 1553482029

Certificate GIA 1553482029

Diamond specifications and retailer prices

From $2,035 USD
As of November 6, 2026
Save $2,575 USD (56%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,610 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 1553482029. Listed at 5 retailers as of November 5, 2026, with prices from $2,035 to $4,610, a $2,575 spread on the same certified stone. NZ Jewellers lists it at $4,610. 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
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1553482029
Dimensions6.58 × 7.27 × 4.20 mm
L/W Ratio1.10
Key to symbols
Crystal, Feather, Twinning Wisp, Needle
Top View
6.58 mm7.27 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1553482029
Side View
Table 55.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,610 USD|Low: $1,790 USD|High: $5,196 USD|Avg: $3,169 USD|-11.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5$2,035 USD
Retailer 4$2,226 USD
Retailer 2$2,737 USD
Retailer 6$2,842 USD
Retailer 3$3,851 USD
NZ Jewellers$4,610 USD

28 data points across 6 retailers

5 retailers$2,035 USD to $4,610 USD

A
Cheapest Retailer
-
$2,035 USD
Final sale: no returns
A
Retailer 2
-
$2,226 USD
View
B+
Retailer 3
-
$2,737 USD
View
B
Retailer 4
-
$3,851 USD
View
Most Expensive
B
NZ Jewellers
5c92c21c-43fd-4a01-9bfd-c14e597894f5 · Nov 5
$4,610 USD
View
4 more retailers have this diamond
Prices start from $2,035 USDSave up to $2,575 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
$2,035 USD