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Round|Lab Grown|IGI

1.51ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG12251714

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12251714

Diamond specifications and retailer prices

From HK$2,657 HKD
As of November 5, 2026
Save HK$11,560 HKD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$23,591 HKD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12251714 or 12251714. Listed at 20 retailers as of November 1, 2026, with a 435% 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12251714
Dimensions7.34 × 7.38 × 4.60 mm
L/W Ratio1.01
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
7.34 mm7.38 mm1.51 ctF / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12251714
Side View
Table 58.0%Crown 35.5°Girdle: THN-UNDPavilion 41.6°Culet: NoneDepth 62.4%

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 5
Current: HK$23,591 HKD|Low: HK$2,657 HKD|High: HK$23,591 HKD|Avg: HK$7,777 HKD
Do Amore Diamonds
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
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 4HK$2,657 HKD
Retailer 5HK$2,829 HKD
Retailer 20HK$3,088 HKD
Retailer 7HK$3,300 HKD
Retailer 19HK$3,300 HKD
Retailer 18HK$3,386 HKD
Retailer 9HK$4,507 HKD
Retailer 15HK$5,259 HKD
Retailer 14HK$5,408 HKD
Retailer 3HK$5,886 HKD
Retailer 13HK$6,489 HKD
Retailer 2HK$6,646 HKD
Retailer 12HK$6,646 HKD
Retailer 8HK$9,671 HKD
Retailer 10HK$10,416 HKD
Retailer 16HK$11,207 HKD
Retailer 6HK$11,701 HKD
Retailer 11HK$12,916 HKD
Retailer 17HK$14,217 HKD
Do Amore DiamondsHK$23,591 HKD

21 data points across 20 retailers

20 retailersHK$2,657 HKD to HK$14,217 HKD

A
Cheapest Retailer
-
HK$2,657 HKD
A
Retailer 2
-
HK$2,829 HKD
View
A
Retailer 3
-
HK$3,088 HKD
View
Retailer 4
-
HK$3,300 HKD
View
Price last confirmed 13 days ago
A
Retailer 5
-
HK$3,300 HKD
View
B+
Retailer 6
-
HK$3,386 HKD
View
B+
Retailer 7
-
HK$4,507 HKD
View
B+
Retailer 8
-
HK$5,259 HKD
View
B+
Retailer 9
-
HK$5,408 HKD
View
B
Retailer 10
-
HK$5,886 HKD
View
B+
Retailer 11
-
HK$6,489 HKD
View
B+
Retailer 12
-
HK$6,646 HKD
View
B
Retailer 13
-
HK$6,646 HKD
View
B
Retailer 14
-
HK$9,671 HKD
View
B
Retailer 15
-
HK$10,416 HKD
View
B
Retailer 16
-
HK$11,207 HKD
View
B
Retailer 17
-
HK$11,701 HKD
View
B
Retailer 18
-
HK$12,916 HKD
View
B
Retailer 19
-
HK$14,217 HKD
View
Most Expensive
Do Amore Diamonds
27-AE3F019FF · Nov 6
HK$23,591 HKD
$3,010 USD
View
Price under review
19 more retailers have this diamond
Prices start from HK$2,657 HKDSave up to HK$11,560 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$2,657 HKD