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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 $4,063 SGD
As of November 6, 2026
Save $3,324 SGD (45%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $7,387 SGD 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 $4,063 to $7,387, a $3,324 spread on the same certified stone. Wholesale Diamonds Direct lists it at $7,387. 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: $4,063 SGD|Low: $4,063 SGD|High: $13,445 SGD|Avg: $9,465 SGD|-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$4,063 SGD
Retailer 3$4,197 SGD
Wholesale Diamonds Direct$7,387 SGD
Retailer 8$8,652 SGD
Retailer 9$8,657 SGD
Retailer 7$8,969 SGD
Retailer 6$10,722 SGD
Retailer 2$11,542 SGD
Retailer 5$11,800 SGD
Retailer 10$12,694 SGD
Retailer 4$13,445 SGD

2 data points across 11 retailers

3 retailers$4,063 SGD to $7,387 SGD

B+
Cheapest Retailer
-
$4,063 SGD
Final sale: no returns
B+
Retailer 2
-
$4,197 SGD
View
Most Expensive
C
Wholesale Diamonds Direct
52475930 · Nov 6
$7,387 SGD
$5,764 USD
View
2 more retailers have this diamond
Prices start from $4,063 SGDSave up to $3,324 SGD

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
$4,063 SGD