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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 HK$1,734 HKD
As of November 3, 2026
Save HK$8,160 HKD (82%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: HK$17,138 HKD 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 26 retailers as of November 3, 2026, with a 471% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: HK$3,954 HKD|Low: HK$1,663 HKD|High: HK$9,650 HKD|Avg: HK$4,504 HKD|+4.1%
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
November 5, 2026
Retailer 14HK$1,734 HKD
Retailer 5HK$2,016 HKD
Retailer 3HK$2,150 HKD
Retailer 2HK$2,903 HKD
Retailer 7HK$3,405 HKD
Retailer 11HK$3,711 HKD
Retailer 9HK$3,907 HKD
Retailer 1HK$3,954 HKD
Retailer 4HK$4,072 HKD
Retailer 10HK$5,257 HKD
Retailer 6HK$6,920 HKD
Retailer 8HK$6,944 HKD
Retailer 12HK$8,623 HKD
Retailer 13HK$9,650 HKD

44 data points across 14 retailers

26 retailersHK$1,734 HKD to HK$9,894 HKD

A
Cheapest Retailer
-
HK$1,734 HKD
A
Retailer 2
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HK$1,946 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$2,016 HKD
View
Retailer 4
-
HK$2,150 HKD
View
Price last confirmed 11 days ago
A
Retailer 5
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HK$2,150 HKD
View
A
Retailer 6
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HK$2,409 HKD
View
B+
Retailer 7
-
HK$2,903 HKD
View
A
Retailer 8
-
HK$3,405 HKD
View
A
Retailer 9
-
HK$3,711 HKD
View
A
Retailer 10
-
HK$3,907 HKD
View
A
Retailer 11
-
HK$3,954 HKD
View
B+
Retailer 12
-
HK$4,072 HKD
View
B+
Retailer 13
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HK$4,127 HKD
View
B+
Retailer 14
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HK$5,257 HKD
View
B+
Retailer 15
-
HK$5,712 HKD
View
B
Retailer 16
-
HK$6,920 HKD
View
B
Retailer 17
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HK$6,944 HKD
View
Retailer 18
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HK$6,951 HKD
View
Price last confirmed 101 days ago
B
Retailer 19
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HK$6,975 HKD
View
B
Retailer 20
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HK$7,328 HKD
View
B
Retailer 21
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HK$7,414 HKD
View
B
Retailer 22
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HK$8,364 HKD
View
B
Retailer 23
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HK$8,623 HKD
View
Retailer 24
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HK$9,650 HKD
View
Price last confirmed 20 days ago
B
Retailer 25
-
HK$9,894 HKD
View
Most Expensive
Queensmith
LG778645702 · Oct 27
HK$17,138 HKD
£1,720 GBP
View
Price last confirmed 8 days ago
25 more retailers have this diamond
Prices start from HK$1,734 HKDSave up to HK$8,160 HKD

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
HK$1,734 HKD