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Marquise|Lab Grown|IGI

1.18ct E VVS1 Marquise Lab Grown Diamond

ID • E/VVS1 • IGI LG840647620

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840647620

Diamond specifications and retailer prices

From $191 USD
As of October 27, 2026
Save $918 USD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,538 USD at Helzberg Diamonds · As of October 13, 2026
View at Helzberg Diamonds

About this 1.18ct lab-grown marquise diamond

This 1.18ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840647620 or 840647620. Listed at 22 retailers as of October 27, 2026, with a 480% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
E
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840647620
Dimensions10.66 × 5.44 × 3.44 mm
L/W Ratio1.96
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.66 mm5.44 mm1.18 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840647620
Side View
Table 59.0%Crown 39.2°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A+
Exceptional
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: $528 USD|Low: $191 USD|High: $1,140 USD|Avg: $525 USD|-0.4%
Retailer 1
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Retailer 21
October 29, 2026
Retailer 11$191 USD
Retailer 17$213 USD
Retailer 9$222 USD
Retailer 15$236 USD
Retailer 8$237 USD
Retailer 19$290 USD
Retailer 14$320 USD
Retailer 7$389 USD
Retailer 3$407 USD
Retailer 12$427 USD
Retailer 1$528 USD
Retailer 10$557 USD
Retailer 4$578 USD
Retailer 20$758 USD
Retailer 13$764 USD
Retailer 18$767 USD
Retailer 16$792 USD
Retailer 21$812 USD
Retailer 2$920 USD
Retailer 6$958 USD
Retailer 5$1,109 USD

17 data points across 21 retailers

22 retailers$191 USD to $1,109 USD

A+
Cheapest Retailer
-
$191 USD
A
Retailer 2
-
$213 USD
View
Final sale: no returns
A
Retailer 3
-
$222 USD
View
A
Retailer 4
-
$236 USD
View
A
Retailer 5
-
$237 USD
View
A
Retailer 6
-
$290 USD
£229 GBP
View
B+
Retailer 7
-
$320 USD
View
A
Retailer 8
-
$389 USD
€370 EUR
View
A
Retailer 9
-
$407 USD
ZAR 6,571 ZAR
View
A
Retailer 10
-
$427 USD
£336 GBP
View
A
Retailer 11
-
$528 USD
View
A
Retailer 12
-
$557 USD
View
B+
Retailer 13
-
$578 USD
A$889 AUD
View
B+
Retailer 14
-
$758 USD
View
B+
Retailer 15
-
$764 USD
View
B+
Retailer 16
-
$767 USD
SGD 1,037 SGD
View
B+
Retailer 17
-
$792 USD
View
B+
Retailer 18
-
$812 USD
View
B
Retailer 19
-
$920 USD
View
B+
Retailer 20
-
$958 USD
A$1,474 AUD
View
B
Retailer 21
-
$1,109 USD
£873 GBP
View
Most Expensive
Helzberg Diamonds
ZXZOKGMKNMIG · Oct 13
$1,538 USD
View
Price last confirmed 16 days ago
21 more retailers have this diamond
Prices start from $191 USDSave up to $918 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+
1.18ct Marquise
$191 USD