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Heart|Natural|GIA

1.00ct I SI2 Heart Natural Diamond

ID • I/SI2 • GIA 1548496903

Certificate GIA 1548496903

Diamond specifications and retailer prices

From $1,274 USD
As of November 1, 2026
Save $1,796 USD (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,233 USD at NZ Jewellers · As of October 21, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1548496903. Listed at 14 retailers as of November 1, 2026, with a 141% 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

1.00
Carat
I
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1548496903
Dimensions6.90 × 6.20 × 4.05 mm
L/W Ratio1.11
Top View
6.90 mm6.20 mm1.00 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1548496903
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 58.7%

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 1
Current: $1,732 USD|Low: $1,209 USD|High: $3,086 USD|Avg: $1,835 USD|+0.8%
Retailer 1
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
November 1, 2026
Retailer 14$1,274 USD
Retailer 11$1,397 USD
Retailer 9$1,451 USD
Retailer 12$1,572 USD
Retailer 13$1,630 USD
Retailer 10$1,645 USD
Retailer 1$1,732 USD
Retailer 3$1,814 USD
Retailer 4$1,870 USD
Retailer 5$1,870 USD
Retailer 2$1,930 USD
Retailer 6$2,121 USD
Retailer 8$2,394 USD
Retailer 7$3,070 USD

44 data points across 14 retailers

14 retailers$1,274 USD to $3,070 USD

A
Cheapest Retailer
-
$1,274 USD
A
Retailer 2
-
$1,397 USD
View
A
Retailer 3
-
$1,451 USD
View
Final sale: no returns
Retailer 4
-
$1,572 USD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$1,630 USD
View
Retailer 6
-
$1,645 USD
View
Price last confirmed 10 days ago
A
Retailer 7
-
$1,732 USD
£1,364 GBP
View
Retailer 8
-
$1,814 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$1,870 USD
View
B+
Retailer 10
-
$1,870 USD
View
B+
Retailer 11
-
$1,930 USD
View
B
Retailer 12
-
$2,394 USD
€2,280 EUR
View
B
Retailer 13
-
$3,070 USD
£2,417 GBP
View
Most Expensive
NZ Jewellers
a00bb8ec-bc67-4bba-aaea-e60f044af3d5 · Oct 21
$4,233 USD
View
Price last confirmed 11 days ago
13 more retailers have this diamond
Prices start from $1,274 USDSave up to $1,796 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
1.00ct Heart
$1,274 USD