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Round|Lab Grown|IGI

1.28ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG778645614

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778645614

Diamond specifications and retailer prices

From $248 USD
As of October 30, 2026
Save $1,987 USD (89%) vs most expensive(unlock to see where)
22 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 LG778645614 or 778645614. Listed at 22 retailers as of October 27, 2026, with prices from $248 to $2,235, a $1,987 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 angle34.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778645614
Dimensions6.93 × 6.98 × 4.29 mm
L/W Ratio1.01
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
6.93 mm6.98 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778645614
Side View
Table 57.0%Crown 34.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.7%

Caratlytics Score

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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 30
Current: $498 USD|Low: $176 USD|High: $1,113 USD|Avg: $612 USD|+6.8%
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 31, 2026
Retailer 2$248 USD
Retailer 3$274 USD
Retailer 13$370 USD
Retailer 9$471 USD
Retailer 1$498 USD
Retailer 7$509 USD
Retailer 14$519 USD
Retailer 4$526 USD
Retailer 10$671 USD
Retailer 11$714 USD
Retailer 5$926 USD
Retailer 6$935 USD
Retailer 12$1,050 USD
Retailer 8$1,105 USD

40 data points across 14 retailers

22 retailers$248 USD to $2,235 USD

Retailer 1
-
$212 USD
Price last confirmed 30 days ago
A
Retailer 2
-
$248 USD
View
Final sale: no returns
Retailer 3
-
$257 USD
View
Price last confirmed 25 days ago
Retailer 4
-
$274 USD
View
Price last confirmed 29 days ago
A
Retailer 5
-
$307 USD
HK$2,400 HKD
View
B+
Retailer 6
-
$370 USD
View
A
Retailer 7
-
$471 USD
ZAR 7,614 ZAR
View
A
Retailer 8
-
$498 USD
€474 EUR
View
A
Retailer 9
-
$509 USD
£401 GBP
View
B+
Retailer 10
-
$519 USD
View
B+
Retailer 11
-
$526 USD
View
B+
Retailer 12
-
$671 USD
A$1,032 AUD
View
B+
Retailer 13
-
$714 USD
View
Retailer 14
-
$863 USD
View
Price last confirmed 89 days ago
Retailer 15
-
$882 USD
View
Price last confirmed 31 days ago
B
Retailer 16
-
$889 USD
SGD 1,202 SGD
View
B
Retailer 17
-
$935 USD
View
B
Retailer 18
-
$945 USD
View
Retailer 19
-
$1,050 USD
View
Price last confirmed 15 days ago
B+
Retailer 20
-
$1,105 USD
£870 GBP
View
B
Retailer 21
-
$1,261 USD
View
Most Expensive
B
Queensmith
LG778645614 · Oct 27
$2,235 USD
£1,760 GBP
View
21 more retailers have this diamond
Prices start from $248 USDSave up to $1,987 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
$248 USD