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Heart|Natural|GIA

0.91ct F SI1 Heart Natural Diamond

ID • F/SI1 • GIA 5516506634

Certificate GIA 5516506634

Diamond specifications and retailer prices

From $1,637 AUD
$1,147 USD
As of November 2, 2026
Save $2,731 AUD (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,368 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.91ct natural heart diamond

This 0.91ct natural heart sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5516506634. Listed at 7 retailers as of October 30, 2026, with prices from $1,637 to $4,368, a $2,731 spread on the same certified stone. NZ Jewellers lists it at $4,368. 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
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle37.5°
OriginNatural
Grading LabGIA
CertificateGIA 5516506634
Dimensions5.71 × 6.66 × 3.98 mm
L/W Ratio1.17
Top View
5.71 mm6.66 mm0.91 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5516506634
Side View
Table 56.0%CrownGirdle: MED-THKPavilion 37.5°Culet: NoneDepth 59.8%

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 2
Current: $4,368 AUD|Low: $1,637 AUD|High: $4,368 AUD|Avg: $2,688 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6$1,637 AUD
Retailer 7$2,045 AUD
Retailer 2$2,064 AUD
Retailer 4$2,092 AUD
Retailer 5$2,946 AUD
Retailer 8$3,091 AUD
Retailer 3$3,280 AUD
NZ Jewellers$4,368 AUD

39 data points across 8 retailers

7 retailers$1,637 AUD to $4,368 AUD

A
Cheapest Retailer
-
$1,637 AUD
$1,147 USD
B+
Retailer 2
-
$2,045 AUD
$1,433 USD
View
B+
Retailer 3
-
$2,064 AUD
£1,139 GBP
View
B+
Retailer 4
-
$2,092 AUD
£1,154 GBP
View
B+
Retailer 5
-
$2,946 AUD
CA$2,867 CAD
View
B
Retailer 6
-
$3,280 AUD
£1,810 GBP
View
Most Expensive
B
NZ Jewellers
dabbcde9-0787-41ec-b588-687bc7d3b828 · Oct 30
$4,368 AUD
$3,061 USD
View
6 more retailers have this diamond
Prices start from $1,637 AUDSave up to $2,731 AUD

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
$1,637 AUD