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Heart|Natural|IGI

1.20ct G IF Heart Natural Diamond

VG • G/IF • IGI 851659463

Shape and cutting style on the report: Heart brilliant

Certificate IGI 851659463

Diamond specifications and retailer prices

From £3,015 GBP
As of November 6, 2026
Save £287 GBP (9%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £3,303 GBP at Baunat/BNT Diamonds · As of November 6, 2026
View at Baunat/BNT Diamonds

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 851659463. Listed at 2 retailers as of November 6, 2026, with a relatively tight 10% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.20
Carat
G
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 851659463
Dimensions6.10 × 7.28 × 4.65 mm
L/W Ratio1.19
Girdle conditionFaceted
Top View
6.10 mm7.28 mm1.20 ctG / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 851659463
Side View
Table 58.0%Crown 36.2°Girdle: STK-THKPavilion 41.6°CuletDepth 63.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £3,303 GBP|Low: £3,015 GBP|High: £3,303 GBP|Avg: £3,159 GBP
Baunat/BNT Diamonds
Retailer 2
November 6, 2026
Retailer 2£3,015 GBP
Baunat/BNT Diamonds£3,303 GBP

1 data point across 2 retailers

2 retailers£3,015 GBP to £3,303 GBP

B+
Cheapest Retailer
-
£3,015 GBP
Most Expensive
B+
Baunat/BNT Diamonds
185441306 · Nov 6
£3,303 GBP
€4,210 EUR
View
1 more retailer has this diamond
Prices start from £3,015 GBPSave up to £287 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
£3,015 GBP