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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 $1,254 NZD
As of November 6, 2026
Save $831 NZD (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,085 NZD 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 $1,254 to $2,085, a $831 spread on the same certified stone. GemTrove lists it at $2,085. 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
Colour
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 6
Current: $2,085 NZD|Low: $1,091 NZD|High: $2,085 NZD|Avg: $1,480 NZD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 4$1,254 NZD
Retailer 6$1,254 NZD
Retailer 3$1,366 NZD
Retailer 5$1,396 NZD
Retailer 2$1,461 NZD
GemTrove$2,085 NZD

40 data points across 6 retailers

6 retailers$1,254 NZD to $2,085 NZD

A
Cheapest Retailer
-
$1,254 NZD
Final sale: no returns
A
Retailer 2
-
$1,254 NZD
View
A
Retailer 3
-
$1,366 NZD
View
A
Retailer 4
-
$1,396 NZD
View
A
Retailer 5
-
$1,461 NZD
View
Most Expensive
B+
GemTrove
GT-N-01266824-98 · Nov 6
$2,085 NZD
A$1,778 AUD
View
5 more retailers have this diamond
Prices start from $1,254 NZDSave up to $831 NZD

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
$1,254 NZD