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Heart|Natural|GIA

1.01ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 1379616165

Certificate GIA 1379616165

Diamond specifications and retailer prices

From £929 GBP
As of November 6, 2026
Save £2,247 GBP (71%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,177 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.01ct natural heart diamond

This 1.01ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1379616165. Listed at 18 retailers as of November 5, 2026, with prices from £929 to £3,177, a £2,247 spread on the same certified stone. NZ Jewellers lists it at £3,177. 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

1.01
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1379616165
Dimensions6.12 × 6.35 × 4.00 mm
L/W Ratio1.04
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Needle, Indented Natural, Natural
Top View
6.12 mm6.35 mm1.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 1379616165
Side View
Table 61.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £929 GBP|Low: £929 GBP|High: £2,309 GBP|Avg: £1,474 GBP|-3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1£929 GBP
Retailer 10£947 GBP
Retailer 2£1,255 GBP
Retailer 3£1,263 GBP
Retailer 9£1,266 GBP
Retailer 5£1,314 GBP
Retailer 6£1,445 GBP
Retailer 7£1,589 GBP
Retailer 4£1,768 GBP
Retailer 8£2,275 GBP

27 data points across 10 retailers

18 retailers£929 GBP to £3,177 GBP

A
Cheapest Retailer
-
£929 GBP
A
Retailer 2
-
£947 GBP
View
B+
Retailer 3
-
£1,255 GBP
View
B+
Retailer 4
-
£1,263 GBP
View
B+
Retailer 5
-
£1,266 GBP
View
Retailer 6
-
£1,302 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£1,302 GBP
View
B+
Retailer 8
-
£1,314 GBP
View
B+
Retailer 9
-
£1,363 GBP
View
B
Retailer 10
-
£1,405 GBP
View
B
Retailer 11
-
£1,422 GBP
View
B
Retailer 12
-
£1,445 GBP
View
B
Retailer 13
-
£1,502 GBP
View
B
Retailer 14
-
£1,589 GBP
View
B
Retailer 15
-
£1,768 GBP
View
B
Retailer 16
-
£2,275 GBP
View
B
Retailer 17
-
£2,482 GBP
View
Most Expensive
C
NZ Jewellers
4b47987b-8a0b-42b7-a750-6590096d8bd8 · Nov 5
£3,177 GBP
$4,252 USD
View
17 more retailers have this diamond
Prices start from £929 GBPSave up to £2,247 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.

A
1.01ct Heart
£929 GBP