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Heart|Lab Grown|IGI

1.23ct D VVS1 Heart Lab Grown Diamond

ID • D/VVS1 • IGI LG728559284

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG728559284

Diamond specifications and retailer prices

From £149 GBP
$200 USD
As of November 2, 2026
Save £1,282 GBP (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,431 GBP at Do Amore Diamonds · As of November 1, 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG728559284 or 728559284. Listed at 13 retailers as of November 1, 2026, with prices from £149 to £1,431, a £1,282 spread on the same certified stone. Do Amore Diamonds lists it at £1,431. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728559284
Dimensions7.51 × 6.91 × 4.16 mm
L/W Ratio1.09
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
7.51 mm6.91 mm1.23 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728559284
Side View
Table 63.0%Crown 35.3°Girdle: MED-STKPavilion 37°Culet: NoneDepth 55.4%

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 2
Current: £1,431 GBP|Low: £149 GBP|High: £1,602 GBP|Avg: £573 GBP|-10.7%
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
November 2, 2026
Retailer 11£149 GBP
Retailer 15£167 GBP
Retailer 16£173 GBP
Retailer 4£224 GBP
Retailer 3£253 GBP
Retailer 9£335 GBP
Retailer 13£368 GBP
Retailer 7£403 GBP
Retailer 8£454 GBP
Retailer 12£499 GBP
Retailer 2£540 GBP
Retailer 14£657 GBP
Retailer 10£823 GBP
Retailer 6£965 GBP
Retailer 5£1,073 GBP
Do Amore Diamonds£1,431 GBP

30 data points across 16 retailers

13 retailers£149 GBP to £1,431 GBP

A
Cheapest Retailer
-
£149 GBP
$200 USD
A
Retailer 2
-
£167 GBP
$224 USD
View
Final sale: no returns
A
Retailer 3
-
£173 GBP
$232 USD
View
A
Retailer 4
-
£224 GBP
$300 USD
View
B+
Retailer 5
-
£253 GBP
$339 USD
View
A
Retailer 6
-
£335 GBP
€428 EUR
View
B+
Retailer 7
-
£368 GBP
$494 USD
View
B+
Retailer 8
-
£499 GBP
A$1,031 AUD
View
B+
Retailer 9
-
£540 GBP
$725 USD
View
B+
Retailer 10
-
£657 GBP
$881 USD
View
B+
Retailer 11
-
£823 GBP
View
B
Retailer 12
-
£1,073 GBP
$1,440 USD
View
Most Expensive
B
Do Amore Diamonds
27-64E991385 · Nov 1
£1,431 GBP
$1,920 USD
View
12 more retailers have this diamond
Prices start from £149 GBPSave up to £1,282 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
£149 GBP