CaratHunter
Plans
Heart|Natural|GIA

1.20ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 1523096178

Certificate GIA 1523096178

Diamond specifications and retailer prices

From $3,655 SGD
As of November 5, 2026
10 retailers carry this diamond
Most expensive: $7,008 SGD at NZ Jewellers · As of October 24, 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 I 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 1523096178. Listed at 10 retailers as of November 5, 2026. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.37°
Pavilion angle38.71°
OriginNatural
Grading LabGIA
CertificateGIA 1523096178
Dimensions6.41 × 7.21 × 4.31 mm
L/W Ratio1.12
Culet sizeNone
Top View
6.41 mm7.21 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1523096178
Side View
Table 59.0%Crown 38.37°Girdle: STK-VTKPavilion 38.71°Culet: NoneDepth 59.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $7,008 SGD|Low: $2,336 SGD|High: $7,008 SGD|Avg: $3,979 SGD
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
October 26, 2026
Retailer 8$2,804 SGD
Retailer 14$2,990 SGD
Retailer 3$3,322 SGD
Retailer 13$3,322 SGD
Retailer 10$3,342 SGD
Retailer 2$3,519 SGD
Retailer 4$3,524 SGD
Retailer 11$3,524 SGD
Retailer 5$3,640 SGD
Retailer 12$3,655 SGD
Retailer 6$4,443 SGD
Retailer 9$4,871 SGD
Retailer 7$5,880 SGD
NZ Jewellers$7,008 SGD

28 data points across 14 retailers

10 retailers

Retailer 1
-
$3,322 SGD
Price last confirmed 17 days ago
Retailer 2
-
$3,342 SGD
View
Price last confirmed 14 days ago
Retailer 3
-
$3,519 SGD
View
Price last confirmed 12 days ago
Retailer 4
-
$3,524 SGD
View
Price last confirmed 12 days ago
Retailer 5
-
$3,524 SGD
View
Price last confirmed 12 days ago
Retailer 6
-
$3,640 SGD
View
Price last confirmed 12 days ago
B
Retailer 7
-
$3,655 SGD
View
Retailer 8
-
$4,871 SGD
View
Price last confirmed 15 days ago
Retailer 9
-
$5,880 SGD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
5f5739b3-e1c1-4141-afed-a6e930b66354 · Oct 24
$7,008 SGD
$5,468 USD
View
Price last confirmed 13 days ago
9 more retailers have this diamond
Prices start from $3,655 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
$3,655 SGD