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Round|Lab Grown|IGI

1.05ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG778658590

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778658590

Diamond specifications and retailer prices

From $149 USD
As of October 29, 2026
Save $721 USD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $870 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778658590 or 778658590. Listed at 18 retailers as of October 29, 2026, with prices from $149 to $870, a $721 spread on the same certified stone. MOH London lists it at $870. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778658590
Dimensions6.60 × 6.57 × 3.94 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.60 mm6.57 mm1.05 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778658590
Side View
Table 63.0%Crown 33°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 59.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $870 USD|Low: $144 USD|High: $890 USD|Avg: $391 USD|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 18
October 29, 2026
Retailer 7$149 USD
Retailer 5$167 USD
Retailer 3$173 USD
Retailer 4$185 USD
Retailer 16$185 USD
Retailer 17$313 USD
Retailer 14$318 USD
Retailer 12$339 USD
Retailer 2$341 USD
Retailer 10$410 USD
Retailer 15$451 USD
Retailer 13$478 USD
Retailer 11$506 USD
Retailer 6$508 USD
Retailer 18$595 USD
Retailer 8$599 USD
Retailer 9$651 USD
MOH London$870 USD

30 data points across 18 retailers

18 retailers$149 USD to $870 USD

A
Cheapest Retailer
-
$149 USD
A
Retailer 2
-
$173 USD
View
Retailer 3
-
$185 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$185 USD
View
A
Retailer 5
-
$313 USD
View
A
Retailer 6
-
$318 USD
ZAR 5,135 ZAR
View
A
Retailer 7
-
$339 USD
View
A
Retailer 8
-
$341 USD
£268 GBP
View
Retailer 9
-
$410 USD
View
Price last confirmed 14 days ago
Retailer 10
-
$451 USD
A$694 AUD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$478 USD
View
B+
Retailer 12
-
$506 USD
View
B+
Retailer 13
-
$508 USD
SGD 687 SGD
View
Retailer 14
-
$592 USD
View
Price last confirmed 42 days ago
B+
Retailer 15
-
$595 USD
View
B+
Retailer 16
-
$599 USD
View
B+
Retailer 17
-
$651 USD
View
Most Expensive
B
MOH London
LG778658590 · Oct 29
$870 USD
£685 GBP
View
17 more retailers have this diamond
Prices start from $149 USDSave up to $721 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
1.05ct Round
$149 USD