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Heart|Lab Grown|IGI

0.91ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG613382974

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG613382974

Diamond specifications and retailer prices

From $140 USD
As of October 30, 2026
Save $674 USD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $814 USD at MOH London · As of October 25, 2026
View at MOH London

About this 0.91ct lab-grown heart diamond

This 0.91ct lab-grown heart sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG613382974 or 613382974. Listed at 16 retailers as of October 25, 2026, with prices from $140 to $814, a $674 spread on the same certified stone. MOH London lists it at $814. 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

0.91
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG613382974
Dimensions6.19 × 6.74 × 3.83 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.19 mm6.74 mm0.91 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG613382974
Side View
Table 56.0%Crown 33.3°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 56.8%

Caratlytics Score

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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 30
Current: $814 USD|Low: $140 USD|High: $1,314 USD|Avg: $388 USD|-38.1%
MOH London
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
October 31, 2026
Retailer 15$140 USD
Retailer 12$163 USD
Retailer 3$174 USD
Retailer 4$174 USD
Retailer 14$231 USD
Retailer 6$264 USD
Retailer 2$288 USD
Retailer 9$297 USD
Retailer 7$324 USD
Retailer 11$358 USD
Retailer 5$490 USD
Retailer 8$540 USD
Retailer 16$559 USD
Retailer 10$570 USD
Retailer 13$590 USD
MOH London$814 USD

36 data points across 16 retailers

16 retailers$140 USD to $814 USD

A
Cheapest Retailer
-
$140 USD
A
Retailer 2
-
$163 USD
View
A
Retailer 3
-
$174 USD
View
A
Retailer 4
-
$174 USD
View
Retailer 5
-
$231 USD
£182 GBP
View
Price last confirmed 14 days ago
A
Retailer 6
-
$264 USD
View
A
Retailer 7
-
$288 USD
€274 EUR
View
B+
Retailer 8
-
$297 USD
£234 GBP
View
B+
Retailer 9
-
$324 USD
View
B+
Retailer 10
-
$358 USD
£282 GBP
View
B
Retailer 11
-
$490 USD
View
B
Retailer 12
-
$540 USD
View
B
Retailer 13
-
$559 USD
View
B
Retailer 14
-
$570 USD
View
B
Retailer 15
-
$590 USD
View
Most Expensive
B
MOH London
LG613382974 · Oct 25
$814 USD
£641 GBP
View
15 more retailers have this diamond
Prices start from $140 USDSave up to $674 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.

A
0.91ct Heart
$140 USD