Round|Lab Grown|IGI

1.28ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG840650536

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840650536

Diamond specifications and retailer prices

From $181 USD
As of October 29, 2026
Save $868 USD (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,049 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840650536 or 840650536. Listed at 21 retailers as of October 26, 2026, with prices from $181 to $1,049, a $868 spread on the same certified stone. MOH London lists it at $1,049. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840650536
Dimensions6.93 × 6.96 × 4.33 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.93 mm6.96 mm1.28 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840650536
Side View
Table 58.0%Crown 35.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.3%

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: $1,049 USD|Low: $173 USD|High: $1,060 USD|Avg: $487 USD|-1.1%
MOH London
Retailer 2
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Retailer 20
October 30, 2026
Retailer 19$181 USD
Retailer 5$210 USD
Retailer 4$224 USD
Retailer 6$224 USD
Retailer 3$256 USD
Retailer 9$302 USD
Retailer 2$375 USD
Retailer 14$377 USD
Retailer 15$385 USD
Retailer 13$403 USD
Retailer 10$474 USD
Retailer 7$486 USD
Retailer 16$547 USD
Retailer 17$620 USD
Retailer 20$720 USD
Retailer 12$744 USD
Retailer 11$761 USD
Retailer 18$761 USD
Retailer 8$774 USD
MOH London$1,049 USD

30 data points across 20 retailers

21 retailers$181 USD to $1,049 USD

A
Cheapest Retailer
-
$181 USD
A
Retailer 2
-
$210 USD
View
A
Retailer 3
-
$224 USD
View
A
Retailer 4
-
$224 USD
View
A
Retailer 5
-
$256 USD
HK$2,000 HKD
View
B+
Retailer 6
-
$302 USD
View
A
Retailer 7
-
$375 USD
£295 GBP
View
A
Retailer 8
-
$377 USD
€359 EUR
View
A
Retailer 9
-
$385 USD
ZAR 6,215 ZAR
View
A
Retailer 10
-
$403 USD
£317 GBP
View
B+
Retailer 11
-
$474 USD
View
B+
Retailer 12
-
$486 USD
View
B+
Retailer 13
-
$547 USD
A$841 AUD
View
Retailer 14
-
$620 USD
View
Price last confirmed 9 days ago
B+
Retailer 15
-
$720 USD
View
B
Retailer 16
-
$744 USD
SGD 1,006 SGD
View
B
Retailer 17
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$761 USD
View
B
Retailer 18
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$761 USD
View
B
Retailer 19
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$774 USD
View
B
Retailer 20
-
$790 USD
View
Most Expensive
B
MOH London
LG840650536 · Oct 26
$1,049 USD
£826 GBP
View
20 more retailers have this diamond
Prices start from $181 USDSave up to $868 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
$181 USD