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Round|Lab Grown|IGI

1.28ct D VVS1 Round Lab Grown Diamond

EX • D/VVS1 • IGI LG778645702

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778645702

Diamond specifications and retailer prices

From $221 USD
As of October 29, 2026
Save $1,963 USD (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $2,184 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 LG778645702 or 778645702. Listed at 25 retailers as of October 27, 2026, with prices from $221 to $2,184, a $1,963 spread on the same certified stone. Queensmith lists it at $2,184. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778645702
Dimensions6.89 × 6.92 × 4.32 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
6.89 mm6.92 mm1.28 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778645702
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.6%

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 29
Current: $498 USD|Low: $212 USD|High: $1,270 USD|Avg: $588 USD|+6.8%
Retailer 1
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 31, 2026
Retailer 17$221 USD
Retailer 7$248 USD
Retailer 5$257 USD
Retailer 3$274 USD
Retailer 9$274 USD
Retailer 2$370 USD
Retailer 11$436 USD
Retailer 13$471 USD
Retailer 1$498 USD
Retailer 10$509 USD
Retailer 4$519 USD
Retailer 14$671 USD
Retailer 16$714 USD
Retailer 6$882 USD
Retailer 8$1,067 USD
Retailer 12$1,105 USD
Retailer 15$1,230 USD

43 data points across 17 retailers

25 retailers$221 USD to $2,184 USD

A
Cheapest Retailer
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$221 USD
A
Retailer 2
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$248 USD
View
Final sale: no returns
A
Retailer 3
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$257 USD
View
A
Retailer 4
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$274 USD
View
A
Retailer 5
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$274 USD
View
A
Retailer 6
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$307 USD
HK$2,400 HKD
View
B+
Retailer 7
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$370 USD
View
A
Retailer 8
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$436 USD
£344 GBP
View
A
Retailer 9
-
$471 USD
ZAR 7,614 ZAR
View
A
Retailer 10
-
$498 USD
€474 EUR
View
B+
Retailer 11
-
$509 USD
£401 GBP
View
B+
Retailer 12
-
$519 USD
View
B+
Retailer 13
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$526 USD
View
B+
Retailer 14
-
$671 USD
A$1,032 AUD
View
B+
Retailer 15
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$714 USD
View
B
Retailer 16
-
$882 USD
View
Retailer 17
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$886 USD
View
Price last confirmed 96 days ago
B
Retailer 18
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$889 USD
SGD 1,202 SGD
View
B
Retailer 19
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$935 USD
View
B
Retailer 20
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$945 USD
View
B
Retailer 21
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$1,067 USD
£840 GBP
View
B
Retailer 22
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$1,105 USD
£870 GBP
View
Retailer 23
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$1,230 USD
View
Price last confirmed 15 days ago
B
Retailer 24
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$1,261 USD
View
Most Expensive
B
Queensmith
LG778645702 · Oct 27
$2,184 USD
£1,720 GBP
View
24 more retailers have this diamond
Prices start from $221 USDSave up to $1,963 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