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Heart|Lab Grown|GIA

1.23ct D IF Heart Lab Grown Diamond

ID • D/IF • GIA 2534268194

Certificate GIA 2534268194

Diamond specifications and retailer prices

From £1,749 GBP
$2,361 USD
As of October 29, 2026
5 retailers carry this diamond
Most expensive: £1,749 GBP at NZ Jewellers
View at NZ Jewellers

About this 1.23ct lab-grown heart diamond

This 1.23ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2534268194. Listed at 5 retailers as of October 29, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
IF
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2534268194
Dimensions7.28 × 6.62 × 4.27 mm
L/W Ratio1.10
Girdle conditionFaceted
Cert comments
This is a man-made diamond.
Key to symbols
Minor Details of Polish
Top View
7.28 mm6.62 mm1.23 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2534268194
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 58.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: £1,749 GBP|Low: £470 GBP|High: £2,496 GBP|Avg: £1,310 GBP|-0.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 20, 2026
Retailer 5£486 GBP
Retailer 7£530 GBP
Retailer 2£544 GBP
Retailer 3£564 GBP
Retailer 4£1,133 GBP
Retailer 9£1,665 GBP
NZ Jewellers£1,749 GBP
Retailer 8£2,156 GBP
Retailer 6£2,474 GBP

17 data points across 9 retailers

5 retailers

Retailer 1
-
£486 GBP
Price last confirmed 8 days ago
Retailer 2
-
£530 GBP
View
Price last confirmed 21 days ago
Retailer 3
-
£564 GBP
View
Price last confirmed 17 days ago
Retailer 4
-
£1,133 GBP
View
Price last confirmed 17 days ago
Most Expensive
B
NZ Jewellers
3b164a4b-dbf9-4867-b974-b0fd38ff25b5 · Oct 20
£1,749 GBP
$2,361 USD
View
4 more retailers have this diamond

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
1.23ct Heart
£1,749 GBP