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1.51ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG747517989

Shape and cutting style on the report: Round brilliant

Certificate IGI LG747517989

Diamond specifications and retailer prices

From HK$1,836 HKD
As of November 5, 2026
Save HK$8,376 HKD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$10,211 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 LG747517989 or 747517989. Listed at 22 retailers as of November 5, 2026, with prices from HK$1,836 to HK$10,211, a HK$8,376 spread on the same certified stone. Reve Diamonds lists it at HK$10,211. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG747517989
Dimensions7.28 × 7.31 × 4.57 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
7.28 mm7.31 mm1.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG747517989
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.7%

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$3,522 HKD|Low: HK$1,820 HKD|High: HK$10,211 HKD|Avg: HK$4,732 HKD|-0.9%
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
Retailer 15
Retailer 16
Retailer 17
Reve Diamonds
November 6, 2026
Retailer 8HK$1,836 HKD
Retailer 14HK$2,055 HKD
Retailer 16HK$2,126 HKD
Retailer 4HK$2,275 HKD
Retailer 5HK$2,275 HKD
Retailer 1HK$3,522 HKD
Retailer 2HK$3,538 HKD
Retailer 6HK$3,852 HKD
Retailer 11HK$4,236 HKD
Retailer 3HK$4,252 HKD
Retailer 10HK$4,260 HKD
Retailer 17HK$4,527 HKD
Retailer 13HK$5,962 HKD
Retailer 15HK$6,041 HKD
Retailer 9HK$7,312 HKD
Retailer 7HK$7,720 HKD
Retailer 12HK$9,093 HKD
Reve DiamondsHK$10,211 HKD

29 data points across 18 retailers

22 retailersHK$1,836 HKD to HK$10,211 HKD

A
Cheapest Retailer
-
HK$1,836 HKD
A
Retailer 2
-
HK$2,055 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$2,126 HKD
View
Retailer 4
-
HK$2,275 HKD
View
Price last confirmed 12 days ago
A
Retailer 5
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HK$2,275 HKD
View
A
Retailer 6
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HK$3,522 HKD
View
A
Retailer 7
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HK$3,538 HKD
View
B+
Retailer 8
-
HK$3,852 HKD
View
B+
Retailer 9
-
HK$4,236 HKD
View
B+
Retailer 10
-
HK$4,252 HKD
View
B+
Retailer 11
-
HK$4,260 HKD
View
B+
Retailer 12
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HK$4,527 HKD
View
B
Retailer 13
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HK$5,962 HKD
View
B+
Retailer 14
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HK$6,041 HKD
View
Retailer 15
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HK$6,229 HKD
View
Price last confirmed 68 days ago
Retailer 16
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HK$7,249 HKD
View
Price last confirmed 46 days ago
B
Retailer 17
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HK$7,312 HKD
View
B
Retailer 18
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HK$7,335 HKD
View
B
Retailer 19
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HK$7,720 HKD
View
B
Retailer 20
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HK$9,093 HKD
View
Retailer 21
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HK$9,571 HKD
View
Price last confirmed 21 days ago
Most Expensive
B
Reve Diamonds
AB7C357F2 · Nov 6
HK$10,211 HKD
$1,302 USD
View
21 more retailers have this diamond
Prices start from HK$1,836 HKDSave up to HK$8,376 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$1,836 HKD