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Round|Lab Grown|IGI

1.23ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG759507271

Shape and cutting style on the report: Round brilliant

Certificate IGI LG759507271

Diamond specifications and retailer prices

From HK$1,546 HKD
As of November 5, 2026
Save HK$7,739 HKD (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$9,285 HKD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG759507271 or 759507271. Listed at 21 retailers as of November 5, 2026, with prices from HK$1,546 to HK$9,285, a HK$7,739 spread on the same certified stone. Reve Diamonds lists it at HK$9,285. 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

1.23
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG759507271
Dimensions6.91 × 6.88 × 4.21 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
6.91 mm6.88 mm1.23 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG759507271
Side View
Table 60.0%Crown 33.7°Girdle: MediumPavilion 41.4°Culet: NoneDepth 61.0%

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$3,758 HKD|Low: HK$1,530 HKD|High: HK$9,285 HKD|Avg: HK$4,188 HKD|-0.8%
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
Retailer 15
Retailer 16
Reve Diamonds
November 6, 2026
Retailer 7HK$1,546 HKD
Retailer 5HK$1,726 HKD
Retailer 15HK$1,789 HKD
Retailer 2HK$1,914 HKD
Retailer 3HK$1,914 HKD
Retailer 4HK$3,326 HKD
Retailer 10HK$3,436 HKD
Retailer 9HK$3,632 HKD
Retailer 1HK$3,758 HKD
Retailer 16HK$3,844 HKD
Retailer 14HK$4,119 HKD
Retailer 11HK$5,099 HKD
Retailer 8HK$6,158 HKD
Retailer 13HK$6,174 HKD
Retailer 6HK$6,574 HKD
Retailer 12HK$8,920 HKD
Reve DiamondsHK$9,285 HKD

33 data points across 17 retailers

21 retailersHK$1,546 HKD to HK$9,285 HKD

A
Cheapest Retailer
-
HK$1,546 HKD
A
Retailer 2
-
HK$1,726 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$1,789 HKD
View
Retailer 4
-
HK$1,914 HKD
View
Price last confirmed 12 days ago
A
Retailer 5
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HK$1,914 HKD
View
B+
Retailer 6
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HK$3,122 HKD
View
B+
Retailer 7
-
HK$3,326 HKD
View
B+
Retailer 8
-
HK$3,436 HKD
View
B+
Retailer 9
-
HK$3,632 HKD
View
B+
Retailer 10
-
HK$3,758 HKD
View
B+
Retailer 11
-
HK$3,844 HKD
View
B+
Retailer 12
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HK$3,844 HKD
View
B+
Retailer 13
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HK$4,119 HKD
View
B
Retailer 14
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HK$5,099 HKD
View
B
Retailer 15
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HK$5,233 HKD
View
Retailer 16
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HK$6,104 HKD
View
Price last confirmed 46 days ago
B
Retailer 17
-
HK$6,158 HKD
View
B
Retailer 18
-
HK$6,174 HKD
View
B
Retailer 19
-
HK$6,574 HKD
View
B
Retailer 20
-
HK$8,920 HKD
View
Most Expensive
B
Reve Diamonds
932605E8E · Nov 6
HK$9,285 HKD
$1,183 USD
View
20 more retailers have this diamond
Prices start from HK$1,546 HKDSave up to HK$7,739 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
1.23ct Round
HK$1,546 HKD