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Round|Lab Grown|IGI

1.28ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG786633620

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786633620

Diamond specifications and retailer prices

From $221 USD
As of October 29, 2026
Save $2,014 USD (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,235 USD at Queensmith · As of October 27, 2026
View at Queensmith

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 D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG786633620 or 786633620. Listed at 23 retailers as of October 27, 2026, with prices from $221 to $2,235, a $2,014 spread on the same certified stone. Queensmith lists it at $2,235. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786633620
Dimensions6.99 × 7.02 × 4.28 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.99 mm7.02 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786633620
Side View
Table 57.0%Crown 33.7°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $509 USD|Low: $176 USD|High: $1,261 USD|Avg: $607 USD|+6.2%
Retailer 1
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
October 29, 2026
Retailer 5$248 USD
Retailer 3$370 USD
Retailer 11$437 USD
Retailer 9$471 USD
Retailer 8$499 USD
Retailer 1$509 USD
Retailer 4$519 USD
Retailer 6$526 USD
Retailer 10$671 USD
Retailer 12$714 USD
Retailer 13$825 USD
Retailer 14$1,050 USD
Retailer 7$1,105 USD
Retailer 2$1,261 USD

40 data points across 14 retailers

23 retailers$221 USD to $2,235 USD

A
Cheapest Retailer
-
$221 USD
A
Retailer 2
-
$248 USD
View
Final sale: no returns
A
Retailer 3
-
$257 USD
View
A
Retailer 4
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$274 USD
View
A
Retailer 5
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$307 USD
HK$2,400 HKD
View
B+
Retailer 6
-
$370 USD
View
A
Retailer 7
-
$437 USD
£344 GBP
View
Price last confirmed 12 days ago
A
Retailer 8
-
$471 USD
ZAR 7,614 ZAR
View
A
Retailer 9
-
$499 USD
€475 EUR
View
A
Retailer 10
-
$509 USD
£401 GBP
View
B+
Retailer 11
-
$519 USD
View
B+
Retailer 12
-
$526 USD
View
B+
Retailer 13
-
$671 USD
A$1,032 AUD
View
B+
Retailer 14
-
$714 USD
View
B
Retailer 15
-
$825 USD
View
Price last confirmed 15 days ago
B
Retailer 16
-
$882 USD
View
B
Retailer 17
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$889 USD
SGD 1,202 SGD
View
B
Retailer 18
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$935 USD
View
B
Retailer 19
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$945 USD
View
B
Retailer 20
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$1,050 USD
View
Price last confirmed 13 days ago
B+
Retailer 21
-
$1,105 USD
£870 GBP
View
B
Retailer 22
-
$1,261 USD
View
Most Expensive
B
Queensmith
LG786633620 · Oct 27
$2,235 USD
£1,760 GBP
View
22 more retailers have this diamond
Prices start from $221 USDSave up to $2,014 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
$221 USD