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Heart|Natural|GIA

0.30ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 1565743764

Certificate GIA 1565743764

Diamond specifications and retailer prices

From $300 USD
As of October 31, 2026
Save $121 USD (29%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $421 USD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 0.3ct natural heart diamond

This 0.3ct natural heart sits in the sub-half-carat band, graded I 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 1565743764. Listed at 5 retailers as of October 31, 2026, with prices from $300 to $421, a $121 spread on the same certified stone. 77 Diamonds lists it at $421. 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

0.30
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.56°
Pavilion angle38.9°
OriginNatural
Grading LabGIA
CertificateGIA 1565743764
Dimensions4.11 × 4.71 × 2.64 mm
L/W Ratio1.15
Culet sizeNone
Top View
4.11 mm4.71 mm0.30 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1565743764
Side View
Table 58.0%Crown 35.56°Girdle: THN-THKPavilion 38.9°Culet: NoneDepth 56.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $421 USD|Low: $300 USD|High: $424 USD|Avg: $360 USD|-0.5%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 3$300 USD
Retailer 5$317 USD
Retailer 4$376 USD
Retailer 2$412 USD
77 Diamonds$421 USD

4 data points across 5 retailers

5 retailers$300 USD to $421 USD

A
Cheapest Retailer
-
$300 USD
B+
Retailer 2
-
$317 USD
SGD 428 SGD
View
B
Retailer 3
-
$376 USD
View
B
Retailer 4
-
$412 USD
View
Most Expensive
B
77 Diamonds
HSPUIFSBRWXAU6H · Nov 1
$421 USD
£331 GBP
View
4 more retailers have this diamond
Prices start from $300 USDSave up to $121 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.

A
0.30ct Heart
$300 USD