CaratHunter
Plans
Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 3555071739

Certificate GIA 3555071739

Diamond specifications and retailer prices

From $2,652 SGD
As of November 6, 2026
Save $3,274 SGD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,022 SGD at NZ Jewellers · As of October 21, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555071739. Listed at 14 retailers as of November 4, 2026, with a 123% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555071739
Dimensions7.32 × 6.12 × 4.38 mm
L/W Ratio1.20
Culet sizeNone
Key to symbols
Twinning Wisp, Indented Natural
Top View
7.32 mm6.12 mm1.20 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555071739
Side View
Table 57.0%CrownGirdle: Sli. ThickPavilionCulet: NoneDepth 59.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $7,022 SGD|Low: $2,932 SGD|High: $7,022 SGD|Avg: $4,233 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$2,932 SGD
Retailer 8$3,043 SGD
Retailer 9$3,183 SGD
Retailer 2$3,290 SGD
Retailer 7$3,512 SGD
Retailer 4$4,138 SGD
Retailer 3$4,210 SGD
Retailer 5$5,926 SGD
NZ Jewellers$7,022 SGD

43 data points across 9 retailers

14 retailers$2,652 SGD to $5,926 SGD

B+
Cheapest Retailer
-
$2,652 SGD
B+
Retailer 2
-
$2,932 SGD
View
Retailer 3
-
$3,043 SGD
View
Price last confirmed 16 days ago
Retailer 4
-
$3,183 SGD
View
Price last confirmed 16 days ago
B
Retailer 5
-
$3,230 SGD
View
B+
Retailer 6
-
$3,290 SGD
View
Retailer 7
-
$3,512 SGD
View
Price last confirmed 15 days ago
B
Retailer 8
-
$3,537 SGD
View
B
Retailer 9
-
$3,537 SGD
View
B
Retailer 10
-
$3,653 SGD
View
B
Retailer 11
-
$4,138 SGD
View
B
Retailer 12
-
$4,210 SGD
View
B
Retailer 13
-
$5,926 SGD
View
Most Expensive
NZ Jewellers
df2d14e0-08df-4e8d-a5d8-0c24320e995a · Oct 21
$7,022 SGD
$5,479 USD
View
Price last confirmed 16 days ago
13 more retailers have this diamond
Prices start from $2,652 SGDSave up to $3,274 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.

B+
1.20ct Heart
$2,652 SGD