Heart|Natural|GIA

0.90ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 7541377009

Certificate GIA 7541377009

Diamond specifications and retailer prices

From $716 USD
As of November 6, 2026
Save $1,139 USD (61%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,825 USD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.9ct natural heart diamond

This 0.9ct natural heart sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7541377009. Listed at 11 retailers as of November 4, 2026, with a 159% 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

0.90
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38.2°
OriginNatural
Grading LabGIA
CertificateGIA 7541377009
Dimensions5.71 × 6.63 × 3.95 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
5.71 mm6.63 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7541377009
Side View
Table 58.0%CrownGirdle: STK-VTKPavilion 38.2°Culet: NoneDepth 59.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $989 USD|Low: $716 USD|High: $2,127 USD|Avg: $1,224 USD|-12.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$716 USD
Retailer 9$936 USD
Retailer 2$950 USD
Retailer 3$977 USD
Retailer 1$989 USD
Retailer 7$1,055 USD
Retailer 4$1,203 USD
Retailer 8$1,457 USD
Retailer 5$1,485 USD
Retailer 6$1,855 USD

37 data points across 10 retailers

11 retailers$716 USD to $1,855 USD

A
Cheapest Retailer
-
$716 USD
A
Retailer 2
-
$936 USD
View
Final sale: no returns
A
Retailer 3
-
$950 USD
View
A
Retailer 4
-
$977 USD
View
A
Retailer 5
-
$989 USD
View
B+
Retailer 6
-
$1,055 USD
View
B+
Retailer 7
-
$1,203 USD
View
B+
Retailer 8
-
$1,457 USD
View
B+
Retailer 9
-
$1,485 USD
View
B
Retailer 10
-
$1,855 USD
View
Most Expensive
NZ Jewellers
0ead3968-d841-4e00-933a-4e78b6fd3ba9 · Sep 25
$2,825 USD
View
Price last confirmed 42 days ago
10 more retailers have this diamond
Prices start from $716 USDSave up to $1,139 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
0.90ct Heart
$716 USD