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Heart|Lab Grown|IGI

1.23ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG835610703

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG835610703

Diamond specifications and retailer prices

From £131 GBP
As of November 4, 2026
Save £698 GBP (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £829 GBP at Reve Diamonds · As of November 4, 2026
View at Reve 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 LG835610703 or 835610703. Listed at 20 retailers as of November 4, 2026, with prices from £131 to £829, a £698 spread on the same certified stone. Reve Diamonds lists it at £829. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835610703
Dimensions6.71 × 7.36 × 4.36 mm
L/W Ratio1.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.71 mm7.36 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG835610703
Side View
Table 64.0%Crown 32.8°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.2%

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: £288 GBP|Low: £131 GBP|High: £993 GBP|Avg: £409 GBP|+1.6%
Retailer 1
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Retailer 19
Reve Diamonds
November 5, 2026
Retailer 14£131 GBP
Retailer 16£146 GBP
Retailer 2£152 GBP
Retailer 3£162 GBP
Retailer 6£180 GBP
Retailer 13£216 GBP
Retailer 5£269 GBP
Retailer 9£277 GBP
Retailer 19£287 GBP
Retailer 1£288 GBP
Retailer 11£348 GBP
Retailer 10£349 GBP
Retailer 15£521 GBP
Retailer 7£529 GBP
Retailer 8£538 GBP
Retailer 18£551 GBP
Retailer 4£556 GBP
Retailer 17£561 GBP
Retailer 12£756 GBP
Reve Diamonds£829 GBP

31 data points across 20 retailers

20 retailers£131 GBP to £829 GBP

A
Cheapest Retailer
-
£131 GBP
A
Retailer 2
-
£146 GBP
View
Final sale: no returns
A
Retailer 3
-
£152 GBP
View
A
Retailer 4
-
£162 GBP
View
A
Retailer 5
-
£180 GBP
View
A
Retailer 6
-
£216 GBP
View
A
Retailer 7
-
£269 GBP
View
Retailer 8
-
£277 GBP
View
Price last confirmed 13 days ago
B+
Retailer 9
-
£287 GBP
View
A
Retailer 10
-
£288 GBP
View
Retailer 11
-
£348 GBP
View
Price last confirmed 10 days ago
Retailer 12
-
£349 GBP
View
Price last confirmed 9 days ago
B
Retailer 13
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£521 GBP
View
B
Retailer 14
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£529 GBP
View
B
Retailer 15
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£538 GBP
View
B
Retailer 16
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£551 GBP
View
B
Retailer 17
-
£556 GBP
View
B
Retailer 18
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£561 GBP
View
B
Retailer 19
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£756 GBP
View
Most Expensive
B
Reve Diamonds
F4DEAE15A · Nov 4
£829 GBP
$1,119 USD
View
19 more retailers have this diamond
Prices start from £131 GBPSave up to £698 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
£131 GBP