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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 HK$2,221 HKD
₹26,961 INR
As of November 2, 2026
Save HK$2,579 HKD (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$7,155 HKD 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: HK$7,155 HKD|Low: HK$2,217 HKD|High: HK$11,863 HKD|Avg: HK$4,908 HKD|-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 2HK$2,221 HKD
Retailer 10HK$3,099 HKD
Retailer 8HK$3,335 HKD
Retailer 9HK$3,335 HKD
Retailer 12HK$3,570 HKD
Retailer 5HK$4,045 HKD
Retailer 7HK$4,243 HKD
Retailer 6HK$4,800 HKD
Retailer 3HK$4,959 HKD
Retailer 4HK$6,342 HKD
MOH LondonHK$7,155 HKD
Retailer 11HK$11,863 HKD

37 data points across 12 retailers

13 retailersHK$2,221 HKD to HK$4,800 HKD

A
Cheapest Retailer
-
HK$2,221 HKD
₹26,961 INR
B+
Retailer 2
-
HK$2,927 HKD
$373 USD
View
B+
Retailer 3
-
HK$3,099 HKD
$395 USD
View
B+
Retailer 4
-
HK$3,335 HKD
$425 USD
View
B+
Retailer 5
-
HK$3,335 HKD
$425 USD
View
B
Retailer 6
-
HK$3,570 HKD
$455 USD
View
B
Retailer 7
-
HK$4,045 HKD
£406 GBP
View
B
Retailer 8
-
HK$4,174 HKD
$532 USD
View
B
Retailer 9
-
HK$4,243 HKD
£426 GBP
View
B
Retailer 10
-
HK$4,800 HKD
ZAR 9,884 ZAR
View
Retailer 11
-
HK$4,959 HKD
A$972 AUD
View
Price last confirmed 30 days ago
Most Expensive
MOH London
BDFA9C17F · Nov 2
HK$7,155 HKD
£718 GBP
View
Price under review
11 more retailers have this diamond
Prices start from HK$2,221 HKDSave up to HK$2,579 HKD

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
HK$2,221 HKD