Heart|Natural|GIA

1.02ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 2557581515

Certificate GIA 2557581515

Diamond specifications and retailer prices

From $1,139 USD
As of November 4, 2026
Save $1,554 USD (58%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,284 USD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.02ct natural heart diamond

This 1.02ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557581515. Listed at 13 retailers as of November 4, 2026, with a 136% 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

1.02
Carat
J
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557581515
Dimensions6.03 × 6.79 × 4.32 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.03 mm6.79 mm1.02 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557581515
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.7%

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 4
Current: $1,881 USD|Low: $1,113 USD|High: $3,114 USD|Avg: $1,836 USD|-9.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 8$1,139 USD
Retailer 9$1,423 USD
Retailer 6$1,455 USD
Retailer 11$1,465 USD
Retailer 4$1,527 USD
Retailer 2$1,591 USD
Retailer 10$1,780 USD
Retailer 1$1,881 USD
Retailer 3$2,217 USD
Retailer 7$2,375 USD
Retailer 5$2,693 USD

37 data points across 11 retailers

13 retailers$1,139 USD to $2,693 USD

A
Cheapest Retailer
-
$1,139 USD
B+
Retailer 2
-
$1,423 USD
View
Final sale: no returns
A
Retailer 3
-
$1,455 USD
View
B+
Retailer 4
-
$1,465 USD
View
B+
Retailer 5
-
$1,527 USD
View
Retailer 6
-
$1,591 USD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$1,780 USD
View
B+
Retailer 8
-
$1,881 USD
View
B
Retailer 9
-
$1,883 USD
View
Retailer 10
-
$2,217 USD
View
Price last confirmed 31 days ago
B
Retailer 11
-
$2,375 USD
View
B
Retailer 12
-
$2,693 USD
View
Most Expensive
NZ Jewellers
577dbbf2-e4f9-4d25-b494-48a335be80a6 · Sep 25
$4,284 USD
View
Price last confirmed 40 days ago
12 more retailers have this diamond
Prices start from $1,139 USDSave up to $1,554 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.

A
1.02ct Heart
$1,139 USD