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Heart|Natural|GIA

0.31ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 2557423267

Certificate GIA 2557423267

Diamond specifications and retailer prices

From $404 AUD
₹26,961 INR
As of November 2, 2026
Save $469 AUD (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,301 AUD at MOH London · As of November 2, 2026
View at MOH London

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 2557423267. Listed at 13 retailers as of October 30, 2026, with a 116% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557423267
Dimensions4.11 × 4.70 × 2.79 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp
Top View
4.11 mm4.70 mm0.31 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2557423267
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.3%

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: $1,301 AUD|Low: $403 AUD|High: $2,157 AUD|Avg: $893 AUD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 2$404 AUD
Retailer 10$564 AUD
Retailer 8$606 AUD
Retailer 9$606 AUD
Retailer 12$649 AUD
Retailer 5$736 AUD
Retailer 7$772 AUD
Retailer 6$873 AUD
Retailer 3$902 AUD
Retailer 4$1,153 AUD
MOH London$1,301 AUD
Retailer 11$2,157 AUD

37 data points across 12 retailers

13 retailers$404 AUD to $873 AUD

A
Cheapest Retailer
-
$404 AUD
₹26,961 INR
B+
Retailer 2
-
$532 AUD
$373 USD
View
B+
Retailer 3
-
$564 AUD
$395 USD
View
B+
Retailer 4
-
$606 AUD
$425 USD
View
B+
Retailer 5
-
$606 AUD
$425 USD
View
B
Retailer 6
-
$649 AUD
$455 USD
View
B
Retailer 7
-
$736 AUD
£406 GBP
View
B
Retailer 8
-
$759 AUD
$532 USD
View
B
Retailer 9
-
$772 AUD
£426 GBP
View
B
Retailer 10
-
$873 AUD
ZAR 9,884 ZAR
View
Retailer 11
-
$902 AUD
View
Price last confirmed 30 days ago
Most Expensive
MOH London
BDFA9C17F · Nov 2
$1,301 AUD
£718 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $404 AUDSave up to $469 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
0.31ct Heart
$404 AUD