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Heart|Natural|GIA

1.20ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 6541388165

Certificate GIA 6541388165

Diamond specifications and retailer prices

From $3,117 SGD
As of November 6, 2026
Save $3,697 SGD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,813 SGD at Queensmith · As of October 28, 2026
View at Queensmith

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 6541388165. Listed at 19 retailers as of November 4, 2026, with a 119% 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6541388165
Dimensions6.79 × 7.30 × 4.12 mm
L/W Ratio1.08
Top View
6.79 mm7.30 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6541388165
Side View
Table 63.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 56.5%

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: $7,813 SGD|Low: $3,117 SGD|High: $7,813 SGD|Avg: $4,798 SGD
Queensmith
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
Retailer 15
November 7, 2026
Retailer 5$3,117 SGD
Retailer 9$3,236 SGD
Retailer 14$3,646 SGD
Retailer 15$3,704 SGD
Retailer 7$3,770 SGD
Retailer 8$3,838 SGD
Retailer 10$3,963 SGD
Retailer 2$4,227 SGD
Retailer 6$4,269 SGD
Retailer 12$4,325 SGD
Retailer 4$4,396 SGD
Retailer 11$4,755 SGD
Retailer 13$4,987 SGD
Retailer 3$6,814 SGD
Queensmith$7,813 SGD

23 data points across 15 retailers

19 retailers$3,117 SGD to $6,814 SGD

B+
Cheapest Retailer
-
$3,117 SGD
A
Retailer 2
-
$3,236 SGD
View
B+
Retailer 3
-
$3,646 SGD
View
B+
Retailer 4
-
$3,704 SGD
View
B+
Retailer 5
-
$3,755 SGD
View
B+
Retailer 6
-
$3,770 SGD
View
Final sale: no returns
B+
Retailer 7
-
$3,838 SGD
View
B+
Retailer 8
-
$3,838 SGD
View
B+
Retailer 9
-
$3,963 SGD
View
B+
Retailer 10
-
$4,205 SGD
View
B+
Retailer 11
-
$4,227 SGD
View
B+
Retailer 12
-
$4,269 SGD
View
B+
Retailer 13
-
$4,325 SGD
View
B+
Retailer 14
-
$4,396 SGD
View
Retailer 15
-
$4,407 SGD
View
Price last confirmed 35 days ago
B+
Retailer 16
-
$4,755 SGD
View
B
Retailer 17
-
$4,987 SGD
View
B
Retailer 18
-
$6,814 SGD
View
Most Expensive
Queensmith
6541388165 · Oct 28
$7,813 SGD
£4,800 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from $3,117 SGDSave up to $3,697 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
$3,117 SGD