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Round|Lab Grown|IGI

1.28ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG792619851

Shape and cutting style on the report: Round brilliant

Certificate IGI LG792619851

Diamond specifications and retailer prices

From $179 USD
As of October 29, 2026
Save $859 USD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,038 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG792619851 or 792619851. Listed at 19 retailers as of October 26, 2026, with prices from $179 to $1,038, a $859 spread on the same certified stone. MOH London lists it at $1,038. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792619851
Dimensions6.97 × 6.93 × 4.29 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
6.97 mm6.93 mm1.28 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792619851
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.6%

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: $1,038 USD|Low: $172 USD|High: $1,049 USD|Avg: $474 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
October 30, 2026
Retailer 11$179 USD
Retailer 5$222 USD
Retailer 13$222 USD
Retailer 7$381 USD
Retailer 3$393 USD
Retailer 2$398 USD
Retailer 6$412 USD
Retailer 4$472 USD
Retailer 9$530 USD
Retailer 8$541 USD
Retailer 10$559 USD
Retailer 12$880 USD
MOH London$1,038 USD

44 data points across 13 retailers

19 retailers$179 USD to $1,038 USD

A
Cheapest Retailer
-
$179 USD
A
Retailer 2
-
$207 USD
View
A
Retailer 3
-
$222 USD
View
A
Retailer 4
-
$222 USD
View
A
Retailer 5
-
$381 USD
ZAR 6,148 ZAR
View
A
Retailer 6
-
$393 USD
View
A
Retailer 7
-
$398 USD
£313 GBP
View
A
Retailer 8
-
$412 USD
€392 EUR
View
A
Retailer 9
-
$431 USD
View
B+
Retailer 10
-
$472 USD
View
Retailer 11
-
$530 USD
View
Price last confirmed 12 days ago
B+
Retailer 12
-
$541 USD
A$832 AUD
View
B+
Retailer 13
-
$559 USD
View
Retailer 14
-
$681 USD
View
Price last confirmed 44 days ago
B
Retailer 15
-
$713 USD
View
B
Retailer 16
-
$767 USD
View
B
Retailer 17
-
$798 USD
View
B
Retailer 18
-
$880 USD
View
Most Expensive
B
MOH London
LG792619851 · Oct 26
$1,038 USD
£817 GBP
View
18 more retailers have this diamond
Prices start from $179 USDSave up to $859 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
1.28ct Round
$179 USD