Heart|Natural|GIA

1.02ct I SI1 Heart Natural Diamond

ID • I/SI1 • GIA 1539201761

Certificate GIA 1539201761

Diamond specifications and retailer prices

From $1,559 USD
As of November 6, 2026
Save $771 USD (33%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,428 USD at NZ Jewellers · As of October 21, 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 I 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 1539201761. Listed at 12 retailers as of November 6, 2026, with a 49% 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

1.02
Carat
I
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1539201761
Dimensions6.89 × 5.81 × 4.12 mm
L/W Ratio1.19
Culet sizeNone
Key to symbols
Feather, Crystal, Knot
Top View
6.89 mm5.81 mm1.02 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1539201761
Side View
Table 56.0%CrownGirdle: ThickPavilionCulet: NoneDepth 59.9%

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 6
Current: $4,428 USD|Low: $1,476 USD|High: $4,428 USD|Avg: $2,325 USD
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 27, 2026
Retailer 17$1,559 USD
Retailer 14$1,682 USD
Retailer 12$1,771 USD
Retailer 10$1,905 USD
Retailer 15$1,919 USD
Retailer 18$1,919 USD
Retailer 8$1,940 USD
Retailer 9$1,984 USD
Retailer 13$2,007 USD
Retailer 4$2,214 USD
Retailer 5$2,260 USD
Retailer 6$2,260 USD
Retailer 3$2,330 USD
Retailer 16$2,509 USD
Retailer 7$2,589 USD
Retailer 2$2,878 USD
Retailer 11$3,716 USD
NZ Jewellers$4,428 USD

18 data points across 18 retailers

12 retailers$1,559 USD to $2,330 USD

A
Cheapest Retailer
-
$1,559 USD
Retailer 2
-
$1,682 USD
View
Price last confirmed 11 days ago
Retailer 3
-
$1,919 USD
View
Price last confirmed 15 days ago
Retailer 4
-
$2,007 USD
View
Price last confirmed 15 days ago
Retailer 5
-
$2,214 USD
View
Price last confirmed 14 days ago
B+
Retailer 6
-
$2,260 USD
View
B+
Retailer 7
-
$2,260 USD
View
B+
Retailer 8
-
$2,330 USD
View
Retailer 9
-
$2,509 USD
View
Price last confirmed 10 days ago
Retailer 10
-
$2,878 USD
View
Price last confirmed 10 days ago
Retailer 11
-
$3,716 USD
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
fe93faec-5ac9-48b4-b77f-9f3107b2666e · Oct 21
$4,428 USD
View
Price last confirmed 16 days ago
11 more retailers have this diamond
Prices start from $1,559 USDSave up to $771 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
$1,559 USD