CaratHunter
Plans
Heart|Natural|GIA

1.23ct I VVS1 Heart Natural Diamond

EX • I/VVS1 • GIA 7542121029

Certificate GIA 7542121029

Diamond specifications and retailer prices

From £1,902 GBP
As of November 4, 2026
Save £2,269 GBP (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,383 GBP at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.23ct natural heart diamond

This 1.23ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7542121029. Listed at 16 retailers as of November 4, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
I
Colour
VVS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7542121029
Dimensions6.65 × 7.55 × 4.30 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Pinpoint
Top View
6.65 mm7.55 mm1.23 ctI / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7542121029
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 56.9%

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 4
Current: £4,383 GBP|Low: £1,902 GBP|High: £4,383 GBP|Avg: £2,829 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 5, 2026
Retailer 8£1,902 GBP
Retailer 5£1,994 GBP
Retailer 3£2,516 GBP
Retailer 11£2,516 GBP
Retailer 6£2,588 GBP
Retailer 9£2,608 GBP
Retailer 12£2,665 GBP
Retailer 4£2,713 GBP
Retailer 10£2,902 GBP
Retailer 2£3,052 GBP
Retailer 7£4,171 GBP
NZ Jewellers£4,383 GBP

37 data points across 12 retailers

16 retailers£1,902 GBP to £4,171 GBP

A
Cheapest Retailer
-
£1,902 GBP
A
Retailer 2
-
£1,994 GBP
View
B+
Retailer 3
-
£2,366 GBP
View
B+
Retailer 4
-
£2,366 GBP
View
B+
Retailer 5
-
£2,505 GBP
View
Retailer 6
-
£2,516 GBP
View
Price last confirmed 19 days ago
Retailer 7
-
£2,516 GBP
View
Price last confirmed 21 days ago
B+
Retailer 8
-
£2,588 GBP
View
B+
Retailer 9
-
£2,608 GBP
View
Retailer 10
-
£2,612 GBP
View
Price last confirmed 21 days ago
Retailer 11
-
£2,665 GBP
View
Price last confirmed 10 days ago
Retailer 12
-
£2,713 GBP
View
Price last confirmed 33 days ago
Retailer 13
-
£2,902 GBP
View
Price last confirmed 18 days ago
B+
Retailer 14
-
£3,052 GBP
View
B
Retailer 15
-
£4,171 GBP
View
Most Expensive
NZ Jewellers
ed487c6a-af59-463c-9c0e-5f05a9a431da · Oct 18
£4,383 GBP
$5,899 USD
View
Price last confirmed 19 days ago
15 more retailers have this diamond
Prices start from £1,902 GBPSave up to £2,269 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
1.23ct Heart
£1,902 GBP