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Heart|Natural|GIA

1.05ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 1192456428

Certificate GIA 1192456428

Diamond specifications and retailer prices

From $3,914 SGD
As of November 4, 2026
Save $1,038 SGD (21%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,952 SGD at Belgium Diamonds · As of November 5, 2026
View at Belgium Diamonds

About this 1.05ct natural heart diamond

This 1.05ct natural heart sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1192456428. Listed at 8 retailers as of November 4, 2026, with prices from $3,914 to $4,952, a $1,038 spread on the same certified stone. Belgium Diamonds lists it at $4,952. 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

1.05
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1192456428
Dimensions8.40 × 6.56 × 1.91 mm
L/W Ratio1.28
Key to symbols
Feather, Crystal, Cavity, Etch Channel
Top View
8.40 mm6.56 mm1.05 ctE / SI1
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceMedium
CertificateGIA 1192456428
Side View
Table 65.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth

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 4
Current: $4,278 SGD|Low: $3,731 SGD|High: $6,303 SGD|Avg: $4,673 SGD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$3,914 SGD
Retailer 4$4,069 SGD
Retailer 6$4,249 SGD
Retailer 1$4,278 SGD
Retailer 3$4,410 SGD
Retailer 5$4,691 SGD
Retailer 2$4,842 SGD
Retailer 9$5,278 SGD
Retailer 8$6,303 SGD

40 data points across 9 retailers

8 retailers$3,914 SGD to $4,952 SGD

B+
Cheapest Retailer
-
$3,914 SGD
B+
Retailer 2
-
$4,069 SGD
View
Final sale: no returns
B
Retailer 3
-
$4,249 SGD
View
B+
Retailer 4
-
$4,278 SGD
View
Retailer 5
-
$4,410 SGD
View
Price last confirmed 8 days ago
Retailer 6
-
$4,691 SGD
View
Price last confirmed 37 days ago
B
Retailer 7
-
$4,842 SGD
View
Most Expensive
B
Belgium Diamonds
357011410 · Nov 5
$4,952 SGD
€3,680 EUR
View
7 more retailers have this diamond
Prices start from $3,914 SGDSave up to $1,038 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+
1.05ct Heart
$3,914 SGD