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Heart|Natural|GIA

1.37ct F SI2 Heart Natural Diamond

GD • F/SI2 • GIA 354

Certificate GIA 354

Diamond specifications and retailer prices

From £2,740 GBP
As of November 6, 2026
Save £709 GBP (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £3,449 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.37ct natural heart diamond

This 1.37ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of November 5, 2026, with prices from £2,740 to £3,449, a £709 spread on the same certified stone. Blue Nile lists it at £3,449. 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

1.37
Carat
F
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 354
Dimensions7.84 × 8.31 × 3.88 mm
L/W Ratio1.06
Top View
7.84 mm8.31 mm1.37 ctF / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 354
Side View
Table 59.0%CrownGirdle: XTN-STKPavilionCulet: NoneDepth 46.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £3,449 GBP|Low: £2,740 GBP|High: £3,449 GBP|Avg: £2,935 GBP
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2£2,740 GBP
Retailer 3£2,873 GBP
Blue Nile£3,449 GBP

2 data points across 3 retailers

3 retailers£2,740 GBP to £3,449 GBP

B+
Cheapest Retailer
-
£2,740 GBP
B
Retailer 2
-
£2,873 GBP
View
Most Expensive
B
Blue Nile
24089473 · Nov 5
£3,449 GBP
$4,616 USD
View
2 more retailers have this diamond
Prices start from £2,740 GBPSave up to £709 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+
1.37ct Heart
£2,740 GBP