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Radiant|Lab Grown|IGI

1.51ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG825630053

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG825630053

Diamond specifications and retailer prices

From HK$2,187 HKD
As of November 6, 2026
Save HK$4,789 HKD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$8,780 HKD at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG825630053 or 825630053. Listed at 12 retailers as of November 5, 2026, with a 219% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle45.6°
Pavilion angle30.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825630053
Dimensions7.45 × 6.17 × 3.70 mm
L/W Ratio1.21
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.45 mm6.17 mm1.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG825630053
Side View
Table 71.0%Crown 45.6°Girdle: MED-STKPavilion 30.8°Culet: NoneDepth 60.0%

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 6
Current: HK$2,187 HKD|Low: HK$1,403 HKD|High: HK$13,402 HKD|Avg: HK$5,182 HKD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
November 6, 2026
Retailer 2HK$1,544 HKD
Retailer 1HK$2,187 HKD
Retailer 11HK$2,892 HKD
Retailer 4HK$2,978 HKD
Retailer 9HK$3,064 HKD
Retailer 12HK$3,064 HKD
Retailer 7HK$3,582 HKD
Retailer 6HK$4,232 HKD
Retailer 5HK$5,682 HKD
Retailer 3HK$5,949 HKD
Retailer 8HK$6,975 HKD
Retailer 10HK$8,049 HKD
Reve DiamondsHK$8,780 HKD

38 data points across 13 retailers

12 retailersHK$2,187 HKD to HK$6,975 HKD

A
Cheapest Retailer
-
HK$2,187 HKD
A
Retailer 2
-
HK$2,892 HKD
View
Retailer 3
-
HK$2,978 HKD
View
Price last confirmed 15 days ago
Retailer 4
-
HK$3,064 HKD
View
Price last confirmed 13 days ago
Retailer 5
-
HK$3,064 HKD
View
Price last confirmed 11 days ago
A
Retailer 6
-
HK$3,582 HKD
View
B+
Retailer 7
-
HK$4,232 HKD
View
B+
Retailer 8
-
HK$5,682 HKD
View
Retailer 9
-
HK$5,949 HKD
View
Price last confirmed 11 days ago
B
Retailer 10
-
HK$6,975 HKD
View
Retailer 11
-
HK$8,049 HKD
View
Price last confirmed 13 days ago
Most Expensive
Reve Diamonds
9925E2399 · Oct 25
HK$8,780 HKD
$1,120 USD
View
Price last confirmed 12 days ago
11 more retailers have this diamond
Prices start from HK$2,187 HKDSave up to HK$4,789 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 Radiant
HK$2,187 HKD