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Heart|Natural|GIA

1.31ct F SI1 Heart Natural Diamond

VG • F/SI1 • GIA 2155358278

Certificate GIA 2155358278

Diamond specifications and retailer prices

From $4,614 AUD
As of November 6, 2026
Save $3,775 AUD (45%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $8,389 AUD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.31ct natural heart diamond

This 1.31ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2155358278. Listed at 3 retailers as of November 6, 2026, with prices from $4,614 to $8,389, a $3,775 spread on the same certified stone. Wholesale Diamonds Direct lists it at $8,389. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.31
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2155358278
Dimensions6.37 × 5.77 × 4.09 mm
L/W Ratio1.10
Culet sizeNone
Top View
6.37 mm5.77 mm1.31 ctF / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 2155358278
Side View
Table 62.0%CrownGirdle: ThinPavilionCulet: NoneDepth 70.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,614 AUD|Low: $4,614 AUD|High: $15,269 AUD|Avg: $10,748 AUD|-49.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
October 10, 2026
Retailer 1$4,614 AUD
Retailer 3$4,766 AUD
Wholesale Diamonds Direct$8,389 AUD
Retailer 8$9,825 AUD
Retailer 9$9,831 AUD
Retailer 7$10,185 AUD
Retailer 6$12,176 AUD
Retailer 2$13,107 AUD
Retailer 5$13,400 AUD
Retailer 10$14,416 AUD
Retailer 4$15,269 AUD

2 data points across 11 retailers

3 retailers$4,614 AUD to $8,389 AUD

B+
Cheapest Retailer
-
$4,614 AUD
Final sale: no returns
B+
Retailer 2
-
$4,766 AUD
View
Most Expensive
C
Wholesale Diamonds Direct
52475930 · Nov 6
$8,389 AUD
$5,764 USD
View
2 more retailers have this diamond
Prices start from $4,614 AUDSave up to $3,775 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.

B+
1.31ct Heart
$4,614 AUD