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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 £224 GBP
$300 USD
As of November 2, 2026
Save £93 GBP (29%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £316 GBP at 77 Diamonds · As of November 2, 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 November 2, 2026, with prices from £224 to £316, a £93 spread on the same certified stone. 77 Diamonds lists it at £316. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £316 GBP|Low: £224 GBP|High: £316 GBP|Avg: £269 GBP|+0.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 3£224 GBP
Retailer 5£236 GBP
Retailer 4£280 GBP
Retailer 2£307 GBP
77 Diamonds£316 GBP

5 data points across 5 retailers

5 retailers£224 GBP to £316 GBP

A
Cheapest Retailer
-
£224 GBP
$300 USD
B+
Retailer 2
-
£236 GBP
SGD 428 SGD
View
B
Retailer 3
-
£280 GBP
$376 USD
View
B
Retailer 4
-
£307 GBP
$412 USD
View
Most Expensive
B
77 Diamonds
HSPUIFSBRWXAU6H · Nov 2
£316 GBP
View
4 more retailers have this diamond
Prices start from £224 GBPSave up to £93 GBP

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
£224 GBP