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Heart|Lab Grown|IGI

1.00ct D IF Heart Lab Grown Diamond

VG • D/IF • IGI LG818661937

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818661937

Diamond specifications and retailer prices

From €235 EUR
$262 USD
As of November 1, 2026
Save €1,028 EUR (81%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,262 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG818661937 or 818661937. Listed at 19 retailers as of October 31, 2026, with prices from €235 to €1,262, a €1,028 spread on the same certified stone. Brilliant Earth lists it at €1,262. 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

1.00
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818661937
Dimensions6.30 × 6.85 × 3.98 mm
L/W Ratio1.09
Girdle conditionFaceted
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
6.30 mm6.85 mm1.00 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818661937
Side View
Table 54.0%Crown 33.7°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 58.1%

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: Nov 1
Current: €1,262 EUR|Low: €235 EUR|High: €1,477 EUR|Avg: €660 EUR|-14.5%
Brilliant Earth
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
November 1, 2026
Retailer 5€235 EUR
Retailer 8€268 EUR
Retailer 12€367 EUR
Retailer 10€433 EUR
Retailer 2€449 EUR
Retailer 9€491 EUR
Retailer 14€494 EUR
Retailer 4€567 EUR
Retailer 3€635 EUR
Retailer 11€678 EUR
Retailer 6€883 EUR
Retailer 7€1,042 EUR
Retailer 13€1,167 EUR
Brilliant Earth€1,262 EUR

29 data points across 14 retailers

19 retailers€235 EUR to €1,262 EUR

Retailer 1
-
€212 EUR
$237 USD
Price last confirmed 24 days ago
A
Retailer 2
-
€235 EUR
$262 USD
View
Final sale: no returns
Retailer 3
-
€249 EUR
$278 USD
View
Price last confirmed 33 days ago
Retailer 4
-
€263 EUR
$294 USD
View
Price last confirmed 32 days ago
Retailer 5
-
€263 EUR
$294 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
€268 EUR
£236 GBP
View
A
Retailer 7
-
€367 EUR
$410 USD
View
A
Retailer 8
-
€433 EUR
View
A
Retailer 9
-
€449 EUR
ZAR 8,107 ZAR
View
B+
Retailer 10
-
€491 EUR
£432 GBP
View
B+
Retailer 11
-
€494 EUR
$552 USD
View
B+
Retailer 12
-
€567 EUR
$633 USD
View
B+
Retailer 13
-
€635 EUR
A$1,091 AUD
View
B+
Retailer 14
-
€678 EUR
$757 USD
View
Retailer 15
-
€847 EUR
$946 USD
View
Price last confirmed 27 days ago
B
Retailer 16
-
€883 EUR
$987 USD
View
B
Retailer 17
-
€1,042 EUR
£917 GBP
View
B
Retailer 18
-
€1,167 EUR
$1,303 USD
View
Most Expensive
B
Brilliant Earth
21580600A · Oct 31
€1,262 EUR
$1,410 USD
View
18 more retailers have this diamond
Prices start from €235 EURSave up to €1,028 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
1.00ct Heart
€235 EUR