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Heart|Natural|GIA

0.37ct H SI2 Heart Natural Diamond

GD • H/SI2 • GIA 1198496545

Certificate GIA 1198496545

Diamond specifications and retailer prices

From £431 GBP
$578 USD
As of November 1, 2026
Save £208 GBP (33%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £639 GBP at Yorxs · As of November 2, 2026
View at Yorxs

About this 0.37ct natural heart diamond

This 0.37ct natural heart sits in the sub-half-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1198496545. Listed at 12 retailers as of November 1, 2026, with prices from £431 to £639, a £208 spread on the same certified stone. Yorxs lists it at £639. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.37
Carat
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1198496545
Dimensions4.76 × 4.34 × 2.99 mm
L/W Ratio1.10
Key to symbols
Crystal
Top View
4.76 mm4.34 mm0.37 ctH / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1198496545
Side View
Table 59.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 62.8%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £529 GBP|Low: £431 GBP|High: £1,353 GBP|Avg: £654 GBP|+6.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Yorxs
November 2, 2026
Retailer 6£431 GBP
Retailer 4£465 GBP
Retailer 5£465 GBP
Retailer 8£478 GBP
Retailer 7£498 GBP
Retailer 1£529 GBP
Retailer 3£591 GBP
Yorxs£639 GBP
Retailer 2£1,002 GBP
Retailer 9£1,353 GBP

44 data points across 10 retailers

12 retailers£431 GBP to £639 GBP

B
Cheapest Retailer
-
£431 GBP
$578 USD
C
Retailer 2
-
£465 GBP
$623 USD
View
C
Retailer 3
-
£465 GBP
$623 USD
View
Retailer 4
-
£498 GBP
$667 USD
View
Price last confirmed 56 days ago
C
Retailer 5
-
£498 GBP
$667 USD
View
C
Retailer 6
-
£498 GBP
$667 USD
View
C
Retailer 7
-
£529 GBP
View
C
Retailer 8
-
£530 GBP
$710 USD
View
C
Retailer 9
-
£591 GBP
View
Most Expensive
C
Yorxs
5F7F4667F · Nov 2
£639 GBP
€816 EUR
View
9 more retailers have this diamond
Prices start from £431 GBPSave up to £208 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.

B
0.37ct Heart
£431 GBP