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Round|Lab Grown|IGI

1.18ct H VVS1 Round Lab Grown Diamond

ID • H/VVS1 • IGI LG455011431

Shape and cutting style on the report: Round brilliant

Certificate IGI LG455011431

Diamond specifications and retailer prices

From $390 USD
As of November 3, 2026
Save $1,165 USD (75%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,520 USD at Do Amore Diamonds · As of November 3, 2026
View at Do Amore Diamonds

About this 1.18ct lab-grown round diamond

This 1.18ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG455011431 or 455011431. Listed at 16 retailers as of November 3, 2026, with a 299% 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
H
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455011431
Dimensions6.78 × 6.76 × 4.21 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa.
Top View
6.78 mm6.76 mm1.18 ctH / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG455011431
Side View
Table 57.5%Crown 35°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.2%

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: Nov 3
Current: $2,520 USD|Low: $250 USD|High: $2,520 USD|Avg: $782 USD
Do Amore Diamonds
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
November 4, 2026
Retailer 4$250 USD
Retailer 5$276 USD
Retailer 12$390 USD
Retailer 13$510 USD
Retailer 7$525 USD
Retailer 14$579 USD
Retailer 8$647 USD
Retailer 10$669 USD
Retailer 3$818 USD
Retailer 2$954 USD
Retailer 11$1,081 USD
Retailer 6$1,256 USD
Retailer 9$1,555 USD
Do Amore Diamonds$2,520 USD

33 data points across 14 retailers

16 retailers$390 USD to $1,555 USD

Retailer 1
-
$222 USD
Price last confirmed 42 days ago
Retailer 2
-
$258 USD
View
Price last confirmed 43 days ago
Retailer 3
-
$272 USD
View
Price last confirmed 43 days ago
A
Retailer 4
-
$390 USD
View
B+
Retailer 5
-
$510 USD
View
B+
Retailer 6
-
$525 USD
View
B
Retailer 7
-
$579 USD
View
B+
Retailer 8
-
$647 USD
View
B
Retailer 9
-
$669 USD
View
B
Retailer 10
-
$818 USD
View
B
Retailer 11
-
$954 USD
View
Retailer 12
-
$978 USD
View
Price last confirmed 44 days ago
B
Retailer 13
-
$1,081 USD
View
B
Retailer 14
-
$1,256 USD
View
B
Retailer 15
-
$1,555 USD
View
Most Expensive
Do Amore Diamonds
27-EF5FE3A7E · Nov 3
$2,520 USD
View
Price under review
15 more retailers have this diamond
Prices start from $390 USDSave up to $1,165 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 Round
$390 USD