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Heart|Natural|GIA

0.91ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 7551109153

Certificate GIA 7551109153

Diamond specifications and retailer prices

From $695 USD
As of November 4, 2026
Save $461 USD (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,156 USD at GemTrove · As of November 6, 2026
View at GemTrove

About this 0.91ct natural heart diamond

This 0.91ct natural heart sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551109153. Listed at 6 retailers as of November 6, 2026, with prices from $695 to $1,156, a $461 spread on the same certified stone. GemTrove lists it at $1,156. 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

0.91
Carat
K
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7551109153
Dimensions6.17 × 6.78 × 3.68 mm
L/W Ratio1.10
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
6.17 mm6.78 mm0.91 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7551109153
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 54.2%

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: $1,156 USD|Low: $605 USD|High: $1,156 USD|Avg: $821 USD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$695 USD
Retailer 6$695 USD
Retailer 3$757 USD
Retailer 5$774 USD
Retailer 2$805 USD
GemTrove$1,156 USD

40 data points across 6 retailers

6 retailers$695 USD to $1,156 USD

A
Cheapest Retailer
-
$695 USD
Final sale: no returns
A
Retailer 2
-
$695 USD
View
A
Retailer 3
-
$757 USD
View
A
Retailer 4
-
$774 USD
View
A
Retailer 5
-
$805 USD
View
Most Expensive
B+
GemTrove
GT-N-01266824-98 · Nov 6
$1,156 USD
A$1,778 AUD
View
5 more retailers have this diamond
Prices start from $695 USDSave up to $461 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
0.91ct Heart
$695 USD