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Heart|Lab Grown|IGI

1.03ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG628451812

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG628451812

Diamond specifications and retailer prices

From €237 EUR
$265 USD
As of October 30, 2026
Save €1,875 EUR (89%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: €2,112 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.03ct lab-grown heart diamond

This 1.03ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG628451812 or 628451812. Listed at 30 retailers as of October 30, 2026, with prices from €237 to €2,112, a €1,875 spread on the same certified stone. Do Amore Diamonds lists it at €2,112. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628451812
Dimensions6.04 × 7.03 × 4.19 mm
L/W Ratio1.16
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
6.04 mm7.03 mm1.03 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628451812
Side View
Table 59.0%Crown 39.5°Girdle: STK-THKPavilion 38.9°Culet: NoneDepth 59.6%

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: €2,112 EUR|Low: €237 EUR|High: €2,846 EUR|Avg: €792 EUR|-25.8%
Do Amore Diamonds
Retailer 2
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Retailer 22
November 1, 2026
Retailer 5€237 EUR
Retailer 20€282 EUR
Retailer 4€339 EUR
Retailer 14€372 EUR
Retailer 15€393 EUR
Retailer 8€410 EUR
Retailer 18€412 EUR
Retailer 19€435 EUR
Retailer 6€458 EUR
Retailer 9€512 EUR
Retailer 17€558 EUR
Retailer 2€575 EUR
Retailer 10€730 EUR
Retailer 22€738 EUR
Retailer 3€904 EUR
Retailer 12€1,062 EUR
Retailer 11€1,193 EUR
Retailer 7€1,252 EUR
Retailer 16€1,310 EUR
Retailer 13€1,312 EUR
Retailer 21€1,504 EUR
Do Amore Diamonds€2,112 EUR

36 data points across 22 retailers

30 retailers€237 EUR to €2,112 EUR

A
Cheapest Retailer
-
€237 EUR
$265 USD
Retailer 2
-
€237 EUR
$265 USD
View
Price last confirmed 23 days ago
Retailer 3
-
€237 EUR
$265 USD
View
Price last confirmed 20 days ago
A
Retailer 4
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€282 EUR
$315 USD
View
Final sale: no returns
Retailer 5
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€294 EUR
$329 USD
View
Price last confirmed 28 days ago
Retailer 6
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€294 EUR
$329 USD
View
Price last confirmed 21 days ago
Retailer 7
-
€321 EUR
$359 USD
View
Price last confirmed 32 days ago
Retailer 8
-
€339 EUR
£298 GBP
View
Price last confirmed 17 days ago
Retailer 9
-
€372 EUR
$416 USD
View
Price last confirmed 33 days ago
Retailer 10
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€393 EUR
$439 USD
View
Price last confirmed 34 days ago
A
Retailer 11
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€410 EUR
$458 USD
View
A
Retailer 12
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€412 EUR
$460 USD
View
A
Retailer 13
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€435 EUR
HK$3,800 HKD
View
A
Retailer 14
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€458 EUR
$512 USD
View
B+
Retailer 15
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€512 EUR
$572 USD
View
B+
Retailer 16
-
€558 EUR
ZAR 10,077 ZAR
View
B+
Retailer 17
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€575 EUR
£506 GBP
View
B+
Retailer 18
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€730 EUR
$816 USD
View
B+
Retailer 19
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€738 EUR
A$1,268 AUD
View
B
Retailer 20
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€904 EUR
$1,010 USD
View
Retailer 21
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€1,045 EUR
$1,167 USD
View
Price last confirmed 21 days ago
B
Retailer 22
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€1,045 EUR
$1,167 USD
View
B
Retailer 23
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€1,062 EUR
SGD 1,604 SGD
View
B
Retailer 24
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€1,193 EUR
$1,332 USD
View
B
Retailer 25
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€1,252 EUR
$1,399 USD
View
B
Retailer 26
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€1,310 EUR
£1,152 GBP
View
B
Retailer 27
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€1,312 EUR
A$2,255 AUD
View
Retailer 28
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€1,412 EUR
$1,577 USD
View
Price last confirmed 31 days ago
Retailer 29
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€1,504 EUR
$1,680 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Do Amore Diamonds
27-1C398A065 · Oct 31
€2,112 EUR
$2,360 USD
View
29 more retailers have this diamond
Prices start from €237 EURSave up to €1,875 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
1.03ct Heart
€237 EUR