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Heart|Lab Grown|IGI

1.00ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG850681377

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG850681377

Diamond specifications and retailer prices

From $395 SGD
€294 EUR
As of October 29, 2026
Save $679 SGD (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,073 SGD at MOH London · As of October 26, 2026
View at MOH London

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG850681377 or 850681377. Listed at 7 retailers as of October 26, 2026, with prices from $395 to $1,073, a $679 spread on the same certified stone. MOH London lists it at $1,073. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850681377
Dimensions6.80 × 5.97 × 4.03 mm
L/W Ratio1.14
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.80 mm5.97 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850681377
Side View
Table 63.0%Crown 37.3°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 59.3%

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: Oct 29
Current: $1,073 SGD|Low: $382 SGD|High: $1,073 SGD|Avg: $567 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 3$395 SGD
Retailer 2$395 SGD
Retailer 5$401 SGD
Retailer 7$426 SGD
Retailer 4$436 SGD
Retailer 6$808 SGD
MOH London$1,073 SGD

7 data points across 7 retailers

7 retailers$395 SGD to $1,073 SGD

A
Cheapest Retailer
-
$395 SGD
€294 EUR
A
Retailer 2
-
$395 SGD
£243 GBP
View
A
Retailer 3
-
$401 SGD
$314 USD
View
B+
Retailer 4
-
$426 SGD
$333 USD
View
B+
Retailer 5
-
$436 SGD
£268 GBP
View
B
Retailer 6
-
$808 SGD
$632 USD
View
Most Expensive
B
MOH London
LG850681377 · Oct 26
$1,073 SGD
£661 GBP
View
6 more retailers have this diamond
Prices start from $395 SGDSave up to $679 SGD

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
1.00ct Heart
$395 SGD