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Heart|Natural|GIA

0.33ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 6551020401

Certificate GIA 6551020401

Diamond specifications and retailer prices

From £194 GBP
$260 USD
As of October 31, 2026
Save £110 GBP (36%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £303 GBP at The Diamond Guys · As of November 2, 2026
View at The Diamond Guys

About this 0.33ct natural heart diamond

This 0.33ct natural heart sits in the sub-half-carat band, graded F 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 6551020401. Listed at 8 retailers as of October 31, 2026, with prices from £194 to £303, a £110 spread on the same certified stone. The Diamond Guys lists it at £303. 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

0.33
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.41°
Pavilion angle38.92°
OriginNatural
Grading LabGIA
CertificateGIA 6551020401
Dimensions4.14 × 4.83 × 2.84 mm
L/W Ratio1.17
Top View
4.14 mm4.83 mm0.33 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551020401
Side View
Table 60.0%Crown 35.41°Girdle: THN-THKPavilion 38.92°Culet: NoneDepth 58.8%

Caratlytics Score

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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: £270 GBP|Low: £194 GBP|High: £326 GBP|Avg: £258 GBP|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 4£194 GBP
Retailer 6£201 GBP
Retailer 5£219 GBP
Retailer 3£259 GBP
Retailer 2£262 GBP
Retailer 1£270 GBP
Retailer 7£301 GBP

40 data points across 7 retailers

8 retailers£194 GBP to £303 GBP

A
Cheapest Retailer
-
£194 GBP
$260 USD
A
Retailer 2
-
£201 GBP
SGD 365 SGD
View
A
Retailer 3
-
£219 GBP
SGD 398 SGD
View
A
Retailer 4
-
£259 GBP
View
A
Retailer 5
-
£262 GBP
$351 USD
View
A
Retailer 6
-
£270 GBP
View
B+
Retailer 7
-
£301 GBP
$404 USD
View
Most Expensive
B+
The Diamond Guys
1939163839 · Nov 2
£303 GBP
$407 USD
View
7 more retailers have this diamond
Prices start from £194 GBPSave up to £110 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
0.33ct Heart
£194 GBP