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Heart|Natural|GIA

0.31ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 2566525326

Certificate GIA 2566525326

Diamond specifications and retailer prices

From $390 USD
As of November 2, 2026
Save $222 USD (36%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $612 USD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 0.31ct natural heart diamond

This 0.31ct natural heart sits in the sub-half-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 2566525326. Listed at 8 retailers as of October 27, 2026, with prices from $390 to $612, a $222 spread on the same certified stone. Wholesale Diamonds Direct lists it at $612. 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

0.31
Carat
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.08°
Pavilion angle39.86°
OriginNatural
Grading LabGIA
CertificateGIA 2566525326
Dimensions4.13 × 4.65 × 2.73 mm
L/W Ratio1.13
Culet sizeNone
Top View
4.13 mm4.65 mm0.31 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566525326
Side View
Table 59.0%Crown 36.08°Girdle: STK-THKPavilion 39.86°Culet: NoneDepth 58.6%

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 2
Current: $504 USD|Low: $390 USD|High: $612 USD|Avg: $494 USD|+5.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Wholesale Diamonds Direct
November 2, 2026
Retailer 5$390 USD
Retailer 6$413 USD
Retailer 4$467 USD
Retailer 1$504 USD
Retailer 2$531 USD
Retailer 3$537 USD
Wholesale Diamonds Direct$612 USD

26 data points across 7 retailers

8 retailers$390 USD to $612 USD

B+
Cheapest Retailer
-
$390 USD
B+
Retailer 2
-
$413 USD
SGD 558 SGD
View
B+
Retailer 3
-
$446 USD
SGD 603 SGD
View
B+
Retailer 4
-
$467 USD
View
B
Retailer 5
-
$504 USD
£397 GBP
View
B
Retailer 6
-
$531 USD
£418 GBP
View
B
Retailer 7
-
$537 USD
View
Most Expensive
B
Wholesale Diamonds Direct
482426092 · Oct 27
$612 USD
View
7 more retailers have this diamond
Prices start from $390 USDSave up to $222 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+
0.31ct Heart
$390 USD