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Round|Lab Grown|IGI

1.18ct H VVS1 Round Lab Grown Diamond

EX • H/VVS1 • IGI LG12377002

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12377002

Diamond specifications and retailer prices

From $344 USD
As of October 29, 2026
Save $1,503 USD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,847 USD at MOH London · As of October 29, 2026
View at MOH London

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 LG12377002 or 12377002. Listed at 20 retailers as of October 29, 2026, with prices from $344 to $1,847, a $1,503 spread on the same certified stone. MOH London lists it at $1,847. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12377002
Dimensions6.77 × 6.80 × 4.21 mm
L/W Ratio1.00
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
6.77 mm6.80 mm1.18 ctH / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12377002
Side View
Table 59.0%Crown 35°Girdle: MED-UNDPavilion 41.5°Culet: NoneDepth 62.1%

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: $1,847 USD|Low: $343 USD|High: $3,050 USD|Avg: $989 USD|+0.3%
MOH London
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
Retailer 12
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Retailer 19
October 30, 2026
Retailer 3$344 USD
Retailer 17$399 USD
Retailer 4$402 USD
Retailer 12$410 USD
Retailer 6$426 USD
Retailer 15$426 USD
Retailer 8$580 USD
Retailer 10$722 USD
Retailer 18$743 USD
Retailer 2$787 USD
Retailer 14$808 USD
Retailer 11$819 USD
Retailer 13$1,146 USD
Retailer 19$1,249 USD
Retailer 9$1,256 USD
Retailer 16$1,512 USD
Retailer 5$1,667 USD
MOH London$1,847 USD
Retailer 7$3,050 USD

13 data points across 19 retailers

20 retailers$344 USD to $1,847 USD

A
Cheapest Retailer
-
$344 USD
A
Retailer 2
-
$399 USD
View
A
Retailer 3
-
$402 USD
View
A
Retailer 4
-
$410 USD
View
A
Retailer 5
-
$426 USD
View
A
Retailer 6
-
$426 USD
View
B+
Retailer 7
-
$580 USD
View
B
Retailer 8
-
$722 USD
View
B
Retailer 9
-
$743 USD
View
B
Retailer 10
-
$787 USD
£620 GBP
View
B
Retailer 11
-
$808 USD
ZAR 13,053 ZAR
View
B
Retailer 12
-
$819 USD
View
B
Retailer 13
-
$1,060 USD
View
B
Retailer 14
-
$1,146 USD
A$1,763 AUD
View
B
Retailer 15
-
$1,249 USD
View
B
Retailer 16
-
$1,256 USD
View
B
Retailer 17
-
$1,512 USD
View
B
Retailer 18
-
$1,667 USD
View
Most Expensive
B
MOH London
LG12377002 · Oct 29
$1,847 USD
£1,454 GBP
View
18 more retailers have this diamond
Prices start from $344 USDSave up to $1,503 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
$344 USD