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Heart|Lab Grown|IGI

1.00ct E SI2 Heart Lab Grown Diamond

ID • E/SI2 • IGI LG831648756

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831648756

Diamond specifications and retailer prices

From $205 USD
HK$1,600 HKD
As of October 30, 2026
Save $616 USD (75%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $820 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG831648756 or 831648756. Listed at 15 retailers as of October 26, 2026, with prices from $205 to $820, a $616 spread on the same certified stone. MOH London lists it at $820. 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
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831648756
Dimensions6.84 × 6.22 × 4.06 mm
L/W Ratio1.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.84 mm6.22 mm1.00 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831648756
Side View
Table 66.0%Crown 34.1°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 59.4%

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 30
Current: $820 USD|Low: $154 USD|High: $828 USD|Avg: $411 USD|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 3$158 USD
Retailer 8$205 USD
Retailer 10$235 USD
Retailer 9$265 USD
Retailer 6$298 USD
Retailer 5$303 USD
Retailer 12$326 USD
Retailer 7$376 USD
Retailer 11$444 USD
Retailer 4$485 USD
Retailer 2$560 USD
MOH London$820 USD

39 data points across 12 retailers

15 retailers$205 USD to $820 USD

Retailer 1
-
$141 USD
Price last confirmed 13 days ago
Retailer 2
-
$164 USD
View
Price last confirmed 16 days ago
Retailer 3
-
$175 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
$205 USD
HK$1,600 HKD
View
Retailer 5
-
$235 USD
£185 GBP
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$265 USD
View
B+
Retailer 7
-
$298 USD
£235 GBP
View
B+
Retailer 8
-
$303 USD
€289 EUR
View
B+
Retailer 9
-
$326 USD
View
B+
Retailer 10
-
$376 USD
£296 GBP
View
B
Retailer 11
-
$444 USD
View
B
Retailer 12
-
$485 USD
SGD 655 SGD
View
B
Retailer 13
-
$560 USD
View
Retailer 14
-
$563 USD
View
Price last confirmed 14 days ago
Most Expensive
B
MOH London
LG831648756 · Oct 26
$820 USD
£646 GBP
View
14 more retailers have this diamond
Prices start from $205 USDSave up to $616 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
1.00ct Heart
$205 USD