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Heart|Lab Grown|IGI

1.25ct D SI1 Heart Lab Grown Diamond

VG • D/SI1 • IGI LG569329078

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG569329078

Diamond specifications and retailer prices

From $405 USD
As of November 6, 2026
Save $1,560 USD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,965 USD at MOH London · As of November 1, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG569329078 or 569329078. Listed at 11 retailers as of November 1, 2026, with prices from $405 to $1,965, a $1,560 spread on the same certified stone. MOH London lists it at $1,965. 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
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG569329078
Dimensions6.32 × 7.53 × 4.46 mm
L/W Ratio1.19
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
6.32 mm7.53 mm1.25 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG569329078
Side View
Table 64.5%Crown 36.4°GirdlePavilion 40.7°Culet: NoneDepth 59.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,965 USD|Low: $389 USD|High: $1,988 USD|Avg: $961 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$405 USD
Retailer 6$454 USD
Retailer 4$503 USD
Retailer 2$598 USD
Retailer 9$795 USD
Retailer 3$818 USD
Retailer 8$1,410 USD
Retailer 5$1,616 USD
MOH London$1,965 USD

46 data points across 9 retailers

11 retailers$405 USD to $1,965 USD

B+
Cheapest Retailer
-
$405 USD
B+
Retailer 2
-
$454 USD
View
B+
Retailer 3
-
$503 USD
View
B
Retailer 4
-
$546 USD
View
B+
Retailer 5
-
$598 USD
View
B
Retailer 6
-
$650 USD
View
B
Retailer 7
-
$795 USD
View
B
Retailer 8
-
$818 USD
View
B
Retailer 9
-
$1,410 USD
View
B
Retailer 10
-
$1,616 USD
View
Most Expensive
B
MOH London
LG569329078 · Nov 1
$1,965 USD
£1,547 GBP
View
10 more retailers have this diamond
Prices start from $405 USDSave up to $1,560 USD

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+
1.25ct Heart
$405 USD