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Round|Lab Grown|IGI

1.23ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG779629050

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779629050

Diamond specifications and retailer prices

From $204 USD
As of November 1, 2026
Save $981 USD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,185 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.23ct lab-grown round diamond

This 1.23ct 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 LG779629050 or 779629050. Listed at 18 retailers as of November 1, 2026, with prices from $204 to $1,185, a $981 spread on the same certified stone. MOH London lists it at $1,185. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779629050
Dimensions6.90 × 6.96 × 4.16 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.90 mm6.96 mm1.23 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779629050
Side View
Table 60.0%Crown 32.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.0%

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: Nov 1
Current: $1,185 USD|Low: $196 USD|High: $1,199 USD|Avg: $550 USD
MOH London
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 1, 2026
Retailer 10$204 USD
Retailer 13$253 USD
Retailer 5$424 USD
Retailer 2$438 USD
Retailer 14$439 USD
Retailer 6$456 USD
Retailer 7$462 USD
Retailer 3$498 USD
Retailer 12$525 USD
Retailer 8$619 USD
Retailer 11$620 USD
Retailer 9$654 USD
Retailer 4$915 USD
MOH London$1,185 USD

30 data points across 14 retailers

18 retailers$204 USD to $1,185 USD

A
Cheapest Retailer
-
$204 USD
A
Retailer 2
-
$237 USD
View
Retailer 3
-
$253 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$253 USD
View
A
Retailer 5
-
$424 USD
View
A
Retailer 6
-
$438 USD
ZAR 7,070 ZAR
View
A
Retailer 7
-
$439 USD
View
B+
Retailer 8
-
$462 USD
€440 EUR
View
B+
Retailer 9
-
$498 USD
View
Retailer 10
-
$525 USD
View
Price last confirmed 13 days ago
B+
Retailer 11
-
$619 USD
A$953 AUD
View
B+
Retailer 12
-
$620 USD
View
B+
Retailer 13
-
$654 USD
View
Retailer 14
-
$743 USD
View
Price last confirmed 46 days ago
B
Retailer 15
-
$815 USD
View
B
Retailer 16
-
$868 USD
View
B
Retailer 17
-
$934 USD
View
Most Expensive
B
MOH London
LG779629050 · Nov 1
$1,185 USD
£933 GBP
View
17 more retailers have this diamond
Prices start from $204 USDSave up to $981 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
1.23ct Round
$204 USD