Heart|Lab Grown|IGI

1.31ct H SI1 Heart Lab Grown Diamond

ID • H/SI1 • IGI LG522254244

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG522254244

Diamond specifications and retailer prices

From €264 EUR

As of November 6, 2026

Save €1,076 EUR (80%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: €1,341 EUR at Reve Diamonds · As of November 6, 2026

View at Reve Diamonds

About this 1.31ct lab-grown heart diamond

This 1.31ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522254244 or 522254244. Listed at 16 retailers as of November 6, 2026, with prices from €264 to €1,341, a €1,076 spread on the same certified stone. Reve Diamonds lists it at €1,341. 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

1.31

Carat

Colour

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle31.5°

Pavilion angle41°

OriginLab Grown

Grading LabIGI

CertificateIGI LG522254244

Dimensions7.92 × 7.08 × 4.21 mm

L/W Ratio1.12

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

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG522254244

Side View

Caratlytics Score

How it works →

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: Nov 6

Current: €1,309 EUR|Low: €253 EUR|High: €1,847 EUR|Avg: €772 EUR|-1.5%

Retailer 1

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Retailer 11

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Reve Diamonds

November 5, 2026

Retailer 11€264 EUR

Retailer 5€296 EUR

Retailer 15€306 EUR

Retailer 2€328 EUR

Retailer 12€328 EUR

Retailer 3€428 EUR

Retailer 9€466 EUR

Retailer 14€537 EUR

Retailer 4€553 EUR

Retailer 8€779 EUR

Retailer 10€1,007 EUR

Retailer 13€1,053 EUR

Retailer 6€1,096 EUR

Retailer 1€1,309 EUR

Reve Diamonds€1,341 EUR

Retailer 7€1,847 EUR

25 data points across 16 retailers

16 retailers€264 EUR to €1,341 EUR

Cheapest Retailer

€264 EUR

B+

Retailer 2

€296 EUR

View

Final sale: no returns

B+

Retailer 3

€306 EUR

View

B+

Retailer 4

€328 EUR

View

Retailer 5

€328 EUR

View

Price last confirmed 13 days ago

B+

Retailer 6

€428 EUR

View

B+

Retailer 7

€466 EUR

View

B+

Retailer 8

€537 EUR

View

B+

Retailer 9

€553 EUR

View

B+

Retailer 10

€562 EUR

View

B+

Retailer 11

€779 EUR

View

B+

Retailer 12

€1,007 EUR

View

B+

Retailer 13

€1,053 EUR

View

B+

Retailer 14

€1,096 EUR

View

B+

Retailer 15

€1,309 EUR

View

Most Expensive

Reve Diamonds

CAC247731 · Nov 6

€1,341 EUR

$1,497 USD

View

15 more retailers have this diamond

Prices start from €264 EURSave up to €1,076 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.

1.31ct Heart

€264 EUR