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Marquise|Lab Grown|IGI

1.30ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG817653480

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG817653480

Diamond specifications and retailer prices

From €159 EUR
$178 USD
As of October 29, 2026
Save €794 EUR (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €953 EUR at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.3ct lab-grown marquise diamond

This 1.3ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG817653480 or 817653480. Listed at 16 retailers as of October 25, 2026, with prices from €159 to €953, a €794 spread on the same certified stone. Reve Diamonds lists it at €953. 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

1.30
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817653480
Dimensions11.10 × 5.56 × 3.84 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.10 mm5.56 mm1.30 ctE / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG817653480
Side View
Table 59.0%Crown 38.5°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 64.9%

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 29
Current: €433 EUR|Low: €139 EUR|High: €1,262 EUR|Avg: €593 EUR|-12.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Reve Diamonds
October 31, 2026
Retailer 10€159 EUR
Retailer 3€240 EUR
Retailer 8€305 EUR
Retailer 7€310 EUR
Retailer 6€345 EUR
Retailer 4€406 EUR
Retailer 1€433 EUR
Retailer 11€619 EUR
Retailer 2€658 EUR
Retailer 9€830 EUR
Retailer 5€850 EUR
Reve Diamonds€953 EUR

38 data points across 12 retailers

16 retailers€159 EUR to €953 EUR

A
Cheapest Retailer
-
€159 EUR
$178 USD
Final sale: no returns
Retailer 2
-
€175 EUR
$195 USD
View
Price last confirmed 23 days ago
Retailer 3
-
€202 EUR
$226 USD
View
Price last confirmed 17 days ago
Retailer 4
-
€217 EUR
$242 USD
View
Price last confirmed 28 days ago
B+
Retailer 5
-
€240 EUR
$268 USD
View
A
Retailer 6
-
€305 EUR
View
A
Retailer 7
-
€310 EUR
£273 GBP
View
A
Retailer 8
-
€345 EUR
£304 GBP
View
B+
Retailer 9
-
€406 EUR
$454 USD
View
B+
Retailer 10
-
€433 EUR
$484 USD
View
B
Retailer 11
-
€619 EUR
$692 USD
View
B
Retailer 12
-
€658 EUR
$735 USD
View
Retailer 13
-
€696 EUR
$778 USD
View
Price last confirmed 31 days ago
B
Retailer 14
-
€830 EUR
£730 GBP
View
B
Retailer 15
-
€850 EUR
$950 USD
View
Most Expensive
B
Reve Diamonds
7986C9E70 · Oct 25
€953 EUR
$1,065 USD
View
15 more retailers have this diamond
Prices start from €159 EURSave up to €794 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
1.30ct Marquise
€159 EUR