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Round|Lab Grown|IGI

1.51ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG779621240

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779621240

Diamond specifications and retailer prices

From HK$1,726 HKD
As of November 5, 2026
Save HK$8,127 HKD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$9,852 HKD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG779621240 or 779621240. Listed at 21 retailers as of November 5, 2026, with prices from HK$1,726 to HK$9,852, a HK$8,127 spread on the same certified stone. Reve Diamonds lists it at HK$9,852. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779621240
Dimensions7.33 × 7.38 × 4.52 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
7.33 mm7.38 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779621240
Side View
Table 57.0%Crown 34.7°Girdle: MediumPavilion 40.5°Culet: NoneDepth 61.6%

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: Nov 5
Current: HK$3,303 HKD|Low: HK$1,655 HKD|High: HK$9,852 HKD|Avg: HK$4,671 HKD|-1.2%
Retailer 1
Retailer 2
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Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Reve Diamonds
November 6, 2026
Retailer 17HK$1,726 HKD
Retailer 9HK$1,922 HKD
Retailer 3HK$2,001 HKD
Retailer 2HK$2,134 HKD
Retailer 7HK$2,134 HKD
Retailer 5HK$2,887 HKD
Retailer 1HK$3,303 HKD
Retailer 11HK$3,436 HKD
Retailer 4HK$3,499 HKD
Retailer 12HK$3,915 HKD
Retailer 8HK$4,127 HKD
Retailer 16HK$4,268 HKD
Retailer 15HK$5,241 HKD
Retailer 13HK$5,962 HKD
Retailer 6HK$6,865 HKD
Retailer 10HK$7,273 HKD
Retailer 18HK$8,159 HKD
Retailer 14HK$8,551 HKD
Reve DiamondsHK$9,852 HKD

44 data points across 19 retailers

21 retailersHK$1,726 HKD to HK$9,852 HKD

A
Cheapest Retailer
-
HK$1,726 HKD
A
Retailer 2
-
HK$1,922 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$2,001 HKD
View
A
Retailer 4
-
HK$2,134 HKD
View
Retailer 5
-
HK$2,134 HKD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
HK$2,887 HKD
View
A
Retailer 7
-
HK$3,303 HKD
View
A
Retailer 8
-
HK$3,436 HKD
View
A
Retailer 9
-
HK$3,499 HKD
View
A
Retailer 10
-
HK$3,915 HKD
View
B+
Retailer 11
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HK$4,127 HKD
View
B+
Retailer 12
-
HK$4,268 HKD
View
B+
Retailer 13
-
HK$5,241 HKD
View
Retailer 14
-
HK$5,547 HKD
View
Price last confirmed 9 days ago
B
Retailer 15
-
HK$5,962 HKD
View
B+
Retailer 16
-
HK$6,041 HKD
View
B
Retailer 17
-
HK$6,865 HKD
View
B
Retailer 18
-
HK$7,273 HKD
View
B
Retailer 19
-
HK$8,159 HKD
View
B
Retailer 20
-
HK$8,551 HKD
View
Most Expensive
B
Reve Diamonds
34A7E3B50 · Nov 6
HK$9,852 HKD
$1,256 USD
View
20 more retailers have this diamond
Prices start from HK$1,726 HKDSave up to HK$8,127 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
1.51ct Round
HK$1,726 HKD