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Heart|Natural|GIA

1.20ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 6535356516

Certificate GIA 6535356516

Diamond specifications and retailer prices

From $3,740 SGD
As of November 6, 2026
Save $2,376 SGD (39%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,730 SGD at NZ Jewellers · As of October 30, 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 6535356516. Listed at 19 retailers as of November 5, 2026, with a 64% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6535356516
Dimensions6.31 × 7.17 × 4.53 mm
L/W Ratio1.14
Top View
6.31 mm7.17 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535356516
Side View
Table 56.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.1%

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: $5,075 SGD|Low: $3,706 SGD|High: $8,480 SGD|Avg: $5,176 SGD|+1.8%
Retailer 1
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 9$3,740 SGD
Retailer 2$4,279 SGD
Retailer 8$4,410 SGD
Retailer 5$4,441 SGD
Retailer 11$4,624 SGD
Retailer 13$4,705 SGD
Retailer 6$4,719 SGD
Retailer 1$5,075 SGD
Retailer 4$5,198 SGD
Retailer 12$5,372 SGD
Retailer 3$5,379 SGD
Retailer 7$6,116 SGD
Retailer 10$8,392 SGD

44 data points across 13 retailers

19 retailers$3,740 SGD to $6,116 SGD

B+
Cheapest Retailer
-
$3,740 SGD
Retailer 2
-
$4,279 SGD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$4,410 SGD
View
B
Retailer 4
-
$4,624 SGD
View
Final sale: no returns
B
Retailer 5
-
$4,705 SGD
View
B
Retailer 6
-
$4,719 SGD
View
B
Retailer 7
-
$4,787 SGD
View
Retailer 8
-
$5,011 SGD
View
Price last confirmed 9 days ago
Retailer 9
-
$5,011 SGD
View
Price last confirmed 9 days ago
Retailer 10
-
$5,011 SGD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$5,075 SGD
View
B
Retailer 12
-
$5,198 SGD
View
Retailer 13
-
$5,372 SGD
View
Price last confirmed 34 days ago
B
Retailer 14
-
$5,379 SGD
View
B
Retailer 15
-
$5,783 SGD
View
B
Retailer 16
-
$5,783 SGD
View
B
Retailer 17
-
$6,116 SGD
View
Retailer 18
-
$8,392 SGD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
35c1ecc9-184e-4d71-b1db-0a13968a14e5 · Oct 30
$8,730 SGD
$6,812 USD
View
Price last confirmed 7 days ago
18 more retailers have this diamond
Prices start from $3,740 SGDSave up to $2,376 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
$3,740 SGD