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Heart|Natural|GIA

1.37ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 2231522138

Certificate GIA 2231522138

Diamond specifications and retailer prices

From £2,808 GBP
As of November 5, 2026
Save £3,455 GBP (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,263 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231522138. Listed at 16 retailers as of November 5, 2026, with prices from £2,808 to £6,263, a £3,455 spread on the same certified stone. NZ Jewellers lists it at £6,263. 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

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

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2231522138
Dimensions7.84 × 8.31 × 3.88 mm
L/W Ratio1.06
Culet sizeVery Small
Top View
7.84 mm8.31 mm1.37 ctF / SI2
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 2231522138
Side View
Table 59.0%CrownGirdle: ETN-STKPavilionCulet: Very SmallDepth 46.7%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: £6,263 GBP|Low: £2,865 GBP|High: £6,263 GBP|Avg: £3,964 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8£2,865 GBP
Retailer 9£3,257 GBP
Retailer 11£3,257 GBP
Retailer 12£3,257 GBP
Retailer 10£3,435 GBP
Retailer 6£3,539 GBP
Retailer 3£3,758 GBP
Retailer 2£3,783 GBP
Retailer 5£3,825 GBP
Retailer 4£3,970 GBP
Retailer 7£5,709 GBP
NZ Jewellers£6,263 GBP

44 data points across 12 retailers

16 retailers£2,808 GBP to £6,263 GBP

B+
Cheapest Retailer
-
£2,808 GBP
B+
Retailer 2
-
£2,865 GBP
View
B+
Retailer 3
-
£2,974 GBP
View
B+
Retailer 4
-
£3,074 GBP
View
Retailer 5
-
£3,257 GBP
View
Price last confirmed 9 days ago
B
Retailer 6
-
£3,257 GBP
View
B
Retailer 7
-
£3,257 GBP
View
B
Retailer 8
-
£3,435 GBP
View
B
Retailer 9
-
£3,539 GBP
View
B
Retailer 10
-
£3,547 GBP
View
B
Retailer 11
-
£3,758 GBP
View
B
Retailer 12
-
£3,783 GBP
View
B
Retailer 13
-
£3,825 GBP
View
Retailer 14
-
£3,970 GBP
View
Price last confirmed 15 days ago
B
Retailer 15
-
£5,709 GBP
View
Most Expensive
C
NZ Jewellers
feddf327-85f1-440f-a58e-59fe02c2a52a · Nov 5
£6,263 GBP
$8,383 USD
View
15 more retailers have this diamond
Prices start from £2,808 GBPSave up to £3,455 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
£2,808 GBP