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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 $5,509 NZD
As of November 4, 2026
Save $1,461 NZD (21%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,970 NZD 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 $5,509 to $6,970, a $1,461 spread on the same certified stone. Belgium Diamonds lists it at $6,970. 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: $6,021 NZD|Low: $5,251 NZD|High: $8,872 NZD|Avg: $6,577 NZD|-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$5,509 NZD
Retailer 4$5,727 NZD
Retailer 6$5,980 NZD
Retailer 1$6,021 NZD
Retailer 3$6,207 NZD
Retailer 5$6,602 NZD
Retailer 2$6,815 NZD
Retailer 9$7,428 NZD
Retailer 8$8,872 NZD

40 data points across 9 retailers

8 retailers$5,509 NZD to $6,970 NZD

B+
Cheapest Retailer
-
$5,509 NZD
B+
Retailer 2
-
$5,727 NZD
View
Final sale: no returns
B
Retailer 3
-
$5,980 NZD
View
B+
Retailer 4
-
$6,021 NZD
View
Retailer 5
-
$6,207 NZD
View
Price last confirmed 8 days ago
Retailer 6
-
$6,602 NZD
View
Price last confirmed 37 days ago
B
Retailer 7
-
$6,815 NZD
View
Most Expensive
B
Belgium Diamonds
357011410 · Nov 5
$6,970 NZD
€3,680 EUR
View
7 more retailers have this diamond
Prices start from $5,509 NZDSave up to $1,461 NZD

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
$5,509 NZD