CaratHunter
Plans
Heart|Natural|GIA

0.31ct E SI2 Heart Natural Diamond

EX • E/SI2 • GIA 2556181007

Certificate GIA 2556181007

Diamond specifications and retailer prices

From $343 AUD
₹22,971 INR
As of October 30, 2026
Save $776 AUD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,846 AUD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.31ct natural heart diamond

This 0.31ct natural heart sits in the sub-half-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556181007. Listed at 12 retailers as of October 29, 2026, with a 226% 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2556181007
Dimensions4.08 × 4.76 × 2.75 mm
L/W Ratio1.17
Top View
4.08 mm4.76 mm0.31 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 2556181007
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.8%

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: Oct 30
Current: $1,846 AUD|Low: $341 AUD|High: $1,846 AUD|Avg: $768 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$343 AUD
Retailer 9$481 AUD
Retailer 8$518 AUD
Retailer 7$537 AUD
Retailer 4$622 AUD
Retailer 10$649 AUD
Retailer 6$660 AUD
Retailer 3$690 AUD
Retailer 11$987 AUD
Retailer 5$1,119 AUD
NZ Jewellers$1,846 AUD

40 data points across 11 retailers

12 retailers$343 AUD to $1,119 AUD

A
Cheapest Retailer
-
$343 AUD
₹22,971 INR
A
Retailer 2
-
$481 AUD
$338 USD
View
A
Retailer 3
-
$518 AUD
$364 USD
View
A
Retailer 4
-
$537 AUD
$377 USD
View
B+
Retailer 5
-
$555 AUD
$390 USD
View
B+
Retailer 6
-
$622 AUD
£344 GBP
View
B+
Retailer 7
-
$649 AUD
$456 USD
View
B+
Retailer 8
-
$660 AUD
£365 GBP
View
B+
Retailer 9
-
$690 AUD
$485 USD
View
Retailer 10
-
$987 AUD
£546 GBP
View
Price last confirmed 30 days ago
B
Retailer 11
-
$1,119 AUD
£619 GBP
View
Most Expensive
NZ Jewellers
ecced7d3-10f2-4fb2-83e4-92e0b5f2d848 · Oct 27
$1,846 AUD
$1,297 USD
View
Price under review
11 more retailers have this diamond
Prices start from $343 AUDSave up to $776 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
$343 AUD