Heart|Natural|GIA

1.31ct F SI1 Heart Natural Diamond

VG • F/SI1 • GIA 2155358278

Certificate GIA 2155358278

Diamond specifications and retailer prices

From $3,170 USD
As of November 6, 2026
Save $2,594 USD (45%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,764 USD 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 $3,170 to $5,764, a $2,594 spread on the same certified stone. Wholesale Diamonds Direct lists it at $5,764. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,170 USD|Low: $3,170 USD|High: $10,491 USD|Avg: $7,385 USD|-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$3,170 USD
Retailer 3$3,275 USD
Wholesale Diamonds Direct$5,764 USD
Retailer 8$6,751 USD
Retailer 9$6,755 USD
Retailer 7$6,998 USD
Retailer 6$8,366 USD
Retailer 2$9,006 USD
Retailer 5$9,207 USD
Retailer 10$9,905 USD
Retailer 4$10,491 USD

2 data points across 11 retailers

3 retailers$3,170 USD to $5,764 USD

B+
Cheapest Retailer
-
$3,170 USD
Final sale: no returns
B+
Retailer 2
-
$3,275 USD
View
Most Expensive
C
Wholesale Diamonds Direct
52475930 · Nov 6
$5,764 USD
View
2 more retailers have this diamond
Prices start from $3,170 USDSave up to $2,594 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.

B+
1.31ct Heart
$3,170 USD