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Heart|Natural|GIA

1.00ct E SI2 Heart Natural Diamond

VG • E/SI2 • GIA 6551320641

Certificate GIA 6551320641

Diamond specifications and retailer prices

From $2,215 SGD
As of November 5, 2026
Save $3,890 SGD (64%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,261 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551320641. Listed at 16 retailers as of November 5, 2026, with a 176% 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

1.00
Carat
E
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.3°
Pavilion angle42.5°
OriginNatural
Grading LabGIA
CertificateGIA 6551320641
Dimensions6.93 × 5.94 × 4.28 mm
L/W Ratio1.17
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Indented Natural
Top View
6.93 mm5.94 mm1.00 ctE / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551320641
Side View
Table 60.0%Crown 37.3°Girdle: MED-THKPavilion 42.5°Culet: NoneDepth 61.8%

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 5
Current: $6,104 SGD|Low: $2,117 SGD|High: $6,261 SGD|Avg: $2,925 SGD|-2.5%
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 6, 2026
Retailer 7$2,215 SGD
Retailer 12$2,261 SGD
Retailer 10$2,309 SGD
Retailer 2$2,361 SGD
Retailer 5$2,466 SGD
Retailer 4$2,503 SGD
Retailer 11$2,503 SGD
Retailer 9$2,618 SGD
Retailer 3$2,679 SGD
Retailer 6$2,717 SGD
Retailer 13$2,887 SGD
Retailer 8$4,384 SGD
NZ Jewellers$6,104 SGD

43 data points across 13 retailers

16 retailers$2,215 SGD to $6,104 SGD

A
Cheapest Retailer
-
$2,215 SGD
A
Retailer 2
-
$2,261 SGD
View
A
Retailer 3
-
$2,309 SGD
View
Final sale: no returns
A
Retailer 4
-
$2,361 SGD
View
A
Retailer 5
-
$2,503 SGD
View
Retailer 6
-
$2,503 SGD
View
Price last confirmed 8 days ago
Retailer 7
-
$2,567 SGD
View
Price last confirmed 39 days ago
B+
Retailer 8
-
$2,618 SGD
View
B+
Retailer 9
-
$2,679 SGD
View
B+
Retailer 10
-
$2,717 SGD
View
B+
Retailer 11
-
$2,887 SGD
View
Retailer 12
-
$2,962 SGD
View
Price last confirmed 61 days ago
Retailer 13
-
$2,962 SGD
View
Price last confirmed 38 days ago
B
Retailer 14
-
$4,384 SGD
View
B
Retailer 15
-
$6,104 SGD
View
Most Expensive
NZ Jewellers
fde212ad-3874-4797-9122-305b00e65026 · Sep 28
$6,261 SGD
$4,885 USD
View
Price last confirmed 39 days ago
15 more retailers have this diamond
Prices start from $2,215 SGDSave up to $3,890 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
1.00ct Heart
$2,215 SGD