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Heart|Lab Grown|IGI

0.91ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG670431145

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG670431145

Diamond specifications and retailer prices

From €310 EUR
$346 USD
As of October 30, 2026
Save €1,189 EUR (79%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €1,498 EUR at MOH London · As of November 1, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG670431145 or 670431145. Listed at 20 retailers as of October 30, 2026, with prices from €310 to €1,498, a €1,189 spread on the same certified stone. MOH London lists it at €1,498. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.91
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670431145
Dimensions5.82 × 6.86 × 4.12 mm
L/W Ratio1.18
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
5.82 mm6.86 mm0.91 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670431145
Side View
Table 61.0%Crown 37.8°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 60.1%

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: €1,498 EUR|Low: €294 EUR|High: €1,541 EUR|Avg: €797 EUR|-2.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 18€310 EUR
Retailer 12€346 EUR
Retailer 10€359 EUR
Retailer 5€383 EUR
Retailer 9€383 EUR
Retailer 17€559 EUR
Retailer 3€591 EUR
Retailer 7€616 EUR
Retailer 2€689 EUR
Retailer 15€694 EUR
Retailer 16€744 EUR
Retailer 14€952 EUR
Retailer 6€1,001 EUR
Retailer 13€1,126 EUR
Retailer 19€1,233 EUR
Retailer 11€1,271 EUR
Retailer 4€1,441 EUR
Retailer 8€1,484 EUR
MOH London€1,498 EUR

40 data points across 19 retailers

20 retailers€310 EUR to €1,498 EUR

A
Cheapest Retailer
-
€310 EUR
$346 USD
A
Retailer 2
-
€346 EUR
$386 USD
View
Final sale: no returns
A
Retailer 3
-
€359 EUR
$401 USD
View
Retailer 4
-
€383 EUR
$428 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
€383 EUR
$428 USD
View
A
Retailer 6
-
€559 EUR
$625 USD
View
B+
Retailer 7
-
€591 EUR
$660 USD
View
B+
Retailer 8
-
€616 EUR
$688 USD
View
B+
Retailer 9
-
€689 EUR
£606 GBP
View
B+
Retailer 10
-
€694 EUR
ZAR 12,521 ZAR
View
B+
Retailer 11
-
€744 EUR
A$1,278 AUD
View
B+
Retailer 12
-
€952 EUR
A$1,637 AUD
View
B
Retailer 13
-
€1,001 EUR
$1,118 USD
View
B+
Retailer 14
-
€1,126 EUR
A$1,936 AUD
View
B
Retailer 15
-
€1,233 EUR
$1,377 USD
View
B
Retailer 16
-
€1,271 EUR
$1,420 USD
View
Retailer 17
-
€1,441 EUR
$1,610 USD
View
Price last confirmed 16 days ago
B
Retailer 18
-
€1,458 EUR
$1,629 USD
View
B
Retailer 19
-
€1,484 EUR
$1,658 USD
View
Most Expensive
B
MOH London
LG670431145 · Nov 1
€1,498 EUR
£1,318 GBP
View
19 more retailers have this diamond
Prices start from €310 EURSave up to €1,189 EUR

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
€310 EUR