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Heart|Natural|IGI

1.20ct G SI1 Heart Natural Diamond

VG • G/SI1 • IGI 800626000

Shape and cutting style on the report: Heart brilliant

Certificate IGI 800626000

Diamond specifications and retailer prices

From $2,746 SGD
As of November 6, 2026
Save $3,609 SGD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,355 SGD 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 very-good cut grade and certified by IGI 800626000. Listed at 13 retailers as of November 5, 2026, with prices from $2,746 to $6,355, a $3,609 spread on the same certified stone. NZ Jewellers lists it at $6,355. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle38.8°
OriginNatural
Grading LabIGI
CertificateIGI 800626000
Dimensions6.35 × 7.38 × 4.30 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizeNone
Top View
6.35 mm7.38 mm1.20 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 800626000
Side View
Table 62.0%Crown 36.6°Girdle: STK-THKPavilion 38.8°Culet: NoneDepth 58.3%

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: $6,355 SGD|Low: $2,746 SGD|High: $6,540 SGD|Avg: $3,554 SGD|-2.8%
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
November 7, 2026
Retailer 3$2,746 SGD
Retailer 4$2,805 SGD
Retailer 6$2,949 SGD
Retailer 5$2,954 SGD
Retailer 13$3,031 SGD
Retailer 8$3,040 SGD
Retailer 10$3,040 SGD
Retailer 11$3,181 SGD
Retailer 2$3,263 SGD
Retailer 12$3,508 SGD
Retailer 7$3,710 SGD
Retailer 9$5,312 SGD
NZ Jewellers$6,355 SGD

30 data points across 13 retailers

13 retailers$2,746 SGD to $6,355 SGD

A
Cheapest Retailer
-
$2,746 SGD
A
Retailer 2
-
$2,805 SGD
View
Final sale: no returns
B+
Retailer 3
-
$2,949 SGD
View
B+
Retailer 4
-
$2,954 SGD
View
B+
Retailer 5
-
$3,031 SGD
View
B+
Retailer 6
-
$3,040 SGD
View
Retailer 7
-
$3,040 SGD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$3,181 SGD
View
B+
Retailer 9
-
$3,263 SGD
View
B+
Retailer 10
-
$3,508 SGD
View
B+
Retailer 11
-
$3,710 SGD
View
B
Retailer 12
-
$5,312 SGD
View
Most Expensive
B
NZ Jewellers
b104df6b-e2fb-4ddc-95b5-384121951bcc · Nov 5
$6,355 SGD
$4,959 USD
View
12 more retailers have this diamond
Prices start from $2,746 SGDSave up to $3,609 SGD

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
$2,746 SGD