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Heart|Natural|GIA

0.31ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 2528279907

Certificate GIA 2528279907

Diamond specifications and retailer prices

From €305 EUR
SGD 463 SGD
As of November 3, 2026
Save €104 EUR (25%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €463 EUR 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2528279907. Listed at 7 retailers as of November 3, 2026, with a 34% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.71°
Pavilion angle40.57°
OriginNatural
Grading LabGIA
CertificateGIA 2528279907
Dimensions4.07 × 4.74 × 2.82 mm
L/W Ratio1.16
Culet sizeNone
Top View
4.07 mm4.74 mm0.31 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2528279907
Side View
Table 59.0%Crown 36.71°Girdle: THN-THKPavilion 40.57°Culet: NoneDepth 59.4%

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 3
Current: €305 EUR|Low: €305 EUR|High: €496 EUR|Avg: €403 EUR|-8.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Wholesale Diamonds Direct
November 3, 2026
Retailer 1€305 EUR
Retailer 6€350 EUR
Retailer 5€363 EUR
Retailer 4€401 EUR
Retailer 3€406 EUR
Retailer 2€409 EUR
Wholesale Diamonds Direct€463 EUR

36 data points across 7 retailers

7 retailers€305 EUR to €409 EUR

A
Cheapest Retailer
-
€305 EUR
SGD 463 SGD
B+
Retailer 2
-
€350 EUR
SGD 531 SGD
View
B+
Retailer 3
-
€363 EUR
$407 USD
View
B
Retailer 4
-
€401 EUR
£354 GBP
View
B+
Retailer 5
-
€406 EUR
$455 USD
View
B
Retailer 6
-
€409 EUR
£361 GBP
View
Most Expensive
Wholesale Diamonds Direct
545794638 · Oct 27
€463 EUR
$520 USD
View
Price last confirmed 7 days ago
6 more retailers have this diamond
Prices start from €305 EURSave up to €104 EUR

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
€305 EUR