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Heart|Natural|GIA

1.20ct H VS1 Heart Natural Diamond

EX • H/VS1 • GIA 1146494842

Certificate GIA 1146494842

Diamond specifications and retailer prices

From £1,930 GBP
As of November 4, 2026
Save £85 GBP (4%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,015 GBP at Adiamor · As of November 5, 2026
View at Adiamor

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1146494842. Listed at 3 retailers as of November 4, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
H
Colour
VS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1146494842
Dimensions5.68 × 5.20 × 4.38 mm
L/W Ratio1.09
Culet sizeNone
Key to symbols
Indented Natural, Pinpoint, Natural, Extra Facet
Top View
5.68 mm5.20 mm1.20 ctH / VS1
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 1146494842
Side View
Table 66.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 84.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: £2,015 GBP|Low: £448 GBP|High: £2,888 GBP|Avg: £2,171 GBP
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
September 23, 2026
Retailer 6£1,930 GBP
Retailer 2£1,937 GBP
Adiamor£2,015 GBP
Retailer 3£2,171 GBP
Retailer 7£2,219 GBP
Retailer 5£2,627 GBP
Retailer 4£2,888 GBP

17 data points across 7 retailers

3 retailers£1,930 GBP to £2,015 GBP

B+
Cheapest Retailer
-
£1,930 GBP
B+
Retailer 2
-
£1,937 GBP
View
Most Expensive
B+
Adiamor
D-60184649 · Nov 5
£2,015 GBP
$2,697 USD
View
2 more retailers have this diamond
Prices start from £1,930 GBPSave up to £85 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+
1.20ct Heart
£1,930 GBP