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Heart|Lab Grown|IGI

1.00ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG836642970

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836642970

Diamond specifications and retailer prices

From €137 EUR
$152 USD
As of October 27, 2026
Save €798 EUR (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €935 EUR at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG836642970 or 836642970. Listed at 16 retailers as of October 27, 2026, with prices from €137 to €935, a €798 spread on the same certified stone. Reve Diamonds lists it at €935. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836642970
Dimensions6.93 × 5.97 × 4.16 mm
L/W Ratio1.16
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
6.93 mm5.97 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836642970
Side View
Table 54.0%Crown 32°Girdle: MED-THKPavilion 40.1°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: €607 EUR|Low: €131 EUR|High: €935 EUR|Avg: €431 EUR|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
October 29, 2026
Retailer 9€137 EUR
Retailer 12€168 EUR
Retailer 11€170 EUR
Retailer 4€260 EUR
Retailer 7€293 EUR
Retailer 3€311 EUR
Retailer 6€322 EUR
Retailer 8€444 EUR
Retailer 10€512 EUR
Retailer 2€544 EUR
Retailer 1€607 EUR
Retailer 5€796 EUR
Reve Diamonds€935 EUR

40 data points across 13 retailers

16 retailers€137 EUR to €935 EUR

A
Cheapest Retailer
-
€137 EUR
$152 USD
A
Retailer 2
-
€158 EUR
$176 USD
View
Price last confirmed 30 days ago
A
Retailer 3
-
€167 EUR
$186 USD
View
Price last confirmed 32 days ago
A
Retailer 4
-
€168 EUR
$187 USD
View
Final sale: no returns
A
Retailer 5
-
€170 EUR
$189 USD
View
A
Retailer 6
-
€170 EUR
$189 USD
View
A
Retailer 7
-
€260 EUR
$289 USD
View
B+
Retailer 8
-
€293 EUR
£257 GBP
View
B+
Retailer 9
-
€311 EUR
$346 USD
View
B+
Retailer 10
-
€322 EUR
£282 GBP
View
B+
Retailer 11
-
€444 EUR
$494 USD
View
B
Retailer 12
-
€512 EUR
$570 USD
View
B
Retailer 13
-
€544 EUR
$606 USD
View
B
Retailer 14
-
€607 EUR
$675 USD
View
B
Retailer 15
-
€796 EUR
£698 GBP
View
Most Expensive
B
Reve Diamonds
F0CE878DF · Oct 28
€935 EUR
$1,040 USD
View
15 more retailers have this diamond
Prices start from €137 EURSave up to €798 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
€137 EUR