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Heart|Natural|GIA

1.06ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 1383855506

Certificate GIA 1383855506

Diamond specifications and retailer prices

From $1,913 USD
As of November 4, 2026
Save $1,092 USD (36%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,238 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.06ct natural heart diamond

This 1.06ct natural heart sits in the classic one-carat band, graded J 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 1383855506. Listed at 15 retailers as of November 3, 2026, with a 57% 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

1.06
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1383855506
Dimensions5.86 × 5.68 × 3.91 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeNone
Cert comments
Inscription(s): GIA 1383855506
Top View
5.86 mm5.68 mm1.06 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1383855506
Side View
Table 65.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 68.8%

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: $4,238 USD|Low: $1,738 USD|High: $4,284 USD|Avg: $2,551 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 3$1,913 USD
Retailer 6$1,977 USD
Retailer 8$2,020 USD
Retailer 7$2,030 USD
Retailer 10$2,111 USD
Retailer 11$2,189 USD
Retailer 2$2,556 USD
Retailer 5$2,969 USD
Retailer 9$2,974 USD
Retailer 4$3,005 USD
MOH London$4,238 USD

43 data points across 11 retailers

15 retailers$1,913 USD to $3,005 USD

B+
Cheapest Retailer
-
$1,913 USD
B+
Retailer 2
-
$1,975 USD
View
B+
Retailer 3
-
$1,977 USD
View
B+
Retailer 4
-
$2,020 USD
View
Final sale: no returns
Retailer 5
-
$2,030 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$2,061 USD
View
B
Retailer 7
-
$2,111 USD
View
B
Retailer 8
-
$2,189 USD
View
B
Retailer 9
-
$2,205 USD
View
B
Retailer 10
-
$2,387 USD
View
B
Retailer 11
-
$2,556 USD
View
B
Retailer 12
-
$2,969 USD
View
Retailer 13
-
$2,974 USD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$3,005 USD
View
Most Expensive
MOH London
30E99A5A2 · Oct 26
$4,238 USD
£3,337 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $1,913 USDSave up to $1,092 USD

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+
1.06ct Heart
$1,913 USD