Heart|Lab Grown|IGI

1.25ct D VS1 Heart Lab Grown Diamond

VG • D/VS1 • IGI LG839611382

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG839611382

Diamond specifications and retailer prices

From £150 GBP
As of November 4, 2026
Save £689 GBP (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £839 GBP at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.25ct lab-grown heart diamond

This 1.25ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG839611382 or 839611382. Listed at 20 retailers as of November 4, 2026, with prices from £150 to £839, a £689 spread on the same certified stone. Reve Diamonds lists it at £839. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.25
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839611382
Dimensions6.85 × 7.15 × 4.36 mm
L/W Ratio1.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.85 mm7.15 mm1.25 ctD / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG839611382
Side View
Table 59.0%Crown 38.4°Girdle: STK-VTKPavilion 41.3°Culet: NoneDepth 61.0%

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: £296 GBP|Low: £130 GBP|High: £843 GBP|Avg: £395 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Reve Diamonds
November 5, 2026
Retailer 8£136 GBP
Retailer 13£150 GBP
Retailer 7£168 GBP
Retailer 9£190 GBP
Retailer 12£221 GBP
Retailer 17£274 GBP
Retailer 4£286 GBP
Retailer 15£294 GBP
Retailer 1£296 GBP
Retailer 10£352 GBP
Retailer 6£359 GBP
Retailer 2£424 GBP
Retailer 5£540 GBP
Retailer 18£542 GBP
Retailer 3£553 GBP
Retailer 14£574 GBP
Retailer 16£578 GBP
Retailer 11£774 GBP
Reve Diamonds£839 GBP

26 data points across 19 retailers

20 retailers£150 GBP to £839 GBP

Retailer 1
-
£136 GBP
Price last confirmed 19 days ago
A
Retailer 2
-
£150 GBP
View
Final sale: no returns
Retailer 3
-
£168 GBP
View
Price last confirmed 28 days ago
A
Retailer 4
-
£190 GBP
View
A
Retailer 5
-
£221 GBP
View
A
Retailer 6
-
£274 GBP
View
Retailer 7
-
£286 GBP
View
Price last confirmed 23 days ago
B+
Retailer 8
-
£294 GBP
View
A
Retailer 9
-
£296 GBP
View
Retailer 10
-
£352 GBP
View
Price last confirmed 10 days ago
Retailer 11
-
£359 GBP
View
Price last confirmed 9 days ago
B+
Retailer 12
-
£424 GBP
View
Retailer 13
-
£540 GBP
View
Price last confirmed 20 days ago
B
Retailer 14
-
£542 GBP
View
B
Retailer 15
-
£553 GBP
View
B
Retailer 16
-
£574 GBP
View
B
Retailer 17
-
£578 GBP
View
B
Retailer 18
-
£644 GBP
View
B
Retailer 19
-
£774 GBP
View
Most Expensive
B
Reve Diamonds
2026EA40A · Nov 4
£839 GBP
$1,133 USD
View
19 more retailers have this diamond
Prices start from £150 GBPSave up to £689 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
1.25ct Heart
£150 GBP