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Heart|Lab Grown|IGI

1.23ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG756588168

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG756588168

Diamond specifications and retailer prices

From £124 GBP
As of November 4, 2026
Save £1,076 GBP (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,200 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG756588168 or 756588168. Listed at 12 retailers as of November 4, 2026, with prices from £124 to £1,200, a £1,076 spread on the same certified stone. Do Amore Diamonds lists it at £1,200. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle42.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756588168
Dimensions6.35 × 7.50 × 4.34 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.35 mm7.50 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756588168
Side View
Table 59.0%Crown 37.4°Girdle: STK-THKPavilion 42.6°Culet: NoneDepth 57.9%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £1,200 GBP|Low: £113 GBP|High: £1,326 GBP|Avg: £490 GBP|-7.4%
Do Amore Diamonds
Retailer 2
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November 2, 2026
Retailer 15£124 GBP
Retailer 16£140 GBP
Retailer 10£144 GBP
Retailer 11£184 GBP
Retailer 3£213 GBP
Retailer 5£315 GBP
Retailer 13£340 GBP
Retailer 7£342 GBP
Retailer 9£416 GBP
Retailer 2£436 GBP
Retailer 14£548 GBP
Retailer 12£549 GBP
Retailer 8£726 GBP
Retailer 4£855 GBP
Retailer 6£873 GBP
Do Amore Diamonds£1,200 GBP

29 data points across 16 retailers

12 retailers£124 GBP to £1,200 GBP

A
Cheapest Retailer
-
£124 GBP
A
Retailer 2
-
£140 GBP
View
Final sale: no returns
A
Retailer 3
-
£144 GBP
View
A
Retailer 4
-
£184 GBP
View
B+
Retailer 5
-
£213 GBP
View
A
Retailer 6
-
£340 GBP
View
B+
Retailer 7
-
£416 GBP
View
B+
Retailer 8
-
£436 GBP
View
B+
Retailer 9
-
£548 GBP
View
B+
Retailer 10
-
£549 GBP
View
Retailer 11
-
£855 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
Do Amore Diamonds
27-3EA4430CB · Nov 4
£1,200 GBP
$1,620 USD
View
11 more retailers have this diamond
Prices start from £124 GBPSave up to £1,076 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
£124 GBP