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Heart|Lab Grown|IGI

1.83ct G SI1 Heart Lab Grown Diamond

ID • G/SI1 • IGI LG625433753

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG625433753

Diamond specifications and retailer prices

From €334 EUR
$373 USD
As of October 30, 2026
Save €1,230 EUR (79%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,628 EUR at MOH London · As of October 19, 2026
View at MOH London

About this 1.83ct lab-grown heart diamond

This 1.83ct lab-grown heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG625433753 or 625433753. Listed at 17 retailers as of October 30, 2026, with a 368% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.83
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625433753
Dimensions8.68 × 7.50 × 4.88 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.68 mm7.50 mm1.83 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625433753
Side View
Table 61.0%Crown 38.7°Girdle: THN-STKPavilion 37.9°Culet: NoneDepth 56.2%

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: €1,628 EUR|Low: €320 EUR|High: €1,862 EUR|Avg: €814 EUR|-0.6%
MOH London
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 16€334 EUR
Retailer 5€373 EUR
Retailer 14€388 EUR
Retailer 7€414 EUR
Retailer 11€414 EUR
Retailer 9€530 EUR
Retailer 15€550 EUR
Retailer 13€647 EUR
Retailer 4€661 EUR
Retailer 8€720 EUR
Retailer 2€749 EUR
Retailer 3€1,037 EUR
Retailer 10€1,173 EUR
Retailer 12€1,332 EUR
Retailer 6€1,564 EUR
MOH London€1,628 EUR

41 data points across 16 retailers

17 retailers€334 EUR to €1,564 EUR

A
Cheapest Retailer
-
€334 EUR
$373 USD
A
Retailer 2
-
€373 EUR
$417 USD
View
Final sale: no returns
A
Retailer 3
-
€388 EUR
$433 USD
View
A
Retailer 4
-
€414 EUR
$463 USD
View
Retailer 5
-
€414 EUR
$463 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
€530 EUR
£467 GBP
View
B+
Retailer 7
-
€550 EUR
$615 USD
View
B+
Retailer 8
-
€647 EUR
$723 USD
View
B+
Retailer 9
-
€661 EUR
$739 USD
View
B
Retailer 10
-
€720 EUR
$804 USD
View
B+
Retailer 11
-
€749 EUR
£659 GBP
View
B
Retailer 12
-
€1,037 EUR
$1,159 USD
View
B
Retailer 13
-
€1,173 EUR
$1,310 USD
View
B
Retailer 14
-
€1,332 EUR
$1,488 USD
View
B
Retailer 15
-
€1,367 EUR
$1,527 USD
View
B
Retailer 16
-
€1,564 EUR
$1,747 USD
View
Most Expensive
MOH London
LG625433753 · Oct 19
€1,628 EUR
£1,432 GBP
View
Price last confirmed 13 days ago
16 more retailers have this diamond
Prices start from €334 EURSave up to €1,230 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
1.83ct Heart
€334 EUR