CaratHunter
Plans
Cushion|Lab Grown|IGI

1.51ct G SI1 Cushion Lab Grown Diamond

VG • G/SI1 • IGI LG520298323

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG520298323

Diamond specifications and retailer prices

From HK$2,997 HKD
$382 USD
As of November 1, 2026
Save HK$15,440 HKD (84%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$18,437 HKD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG520298323 or 520298323. Listed at 8 retailers as of November 1, 2026, with prices from HK$2,997 to HK$18,437, a HK$15,440 spread on the same certified stone. Do Amore Diamonds lists it at HK$18,437. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG520298323
Dimensions6.54 × 6.47 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.54 mm6.47 mm1.51 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG520298323
Side View
Table 62.5%Crown 35°Girdle: STK-VTKPavilion 40.4°Culet: NoneDepth 69.9%

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 1
Current: HK$18,437 HKD|Low: HK$2,997 HKD|High: HK$18,437 HKD|Avg: HK$6,905 HKD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 3HK$2,997 HKD
Retailer 5HK$3,986 HKD
Retailer 2HK$4,607 HKD
Retailer 6HK$6,159 HKD
Retailer 7HK$6,502 HKD
Retailer 8HK$8,340 HKD
Retailer 4HK$10,572 HKD
Do Amore DiamondsHK$18,437 HKD

36 data points across 8 retailers

8 retailersHK$2,997 HKD to HK$18,437 HKD

A
Cheapest Retailer
-
HK$2,997 HKD
$382 USD
B+
Retailer 2
-
HK$3,986 HKD
$508 USD
View
B+
Retailer 3
-
HK$4,607 HKD
£462 GBP
View
B+
Retailer 4
-
HK$6,159 HKD
$785 USD
View
B+
Retailer 5
-
HK$6,502 HKD
$829 USD
View
B
Retailer 6
-
HK$8,340 HKD
$1,063 USD
View
C
Retailer 7
-
HK$10,572 HKD
£1,061 GBP
View
Most Expensive
C
Do Amore Diamonds
27-3AE4D1B28 · Nov 1
HK$18,437 HKD
$2,350 USD
View
7 more retailers have this diamond
Prices start from HK$2,997 HKDSave up to HK$15,440 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 Cushion
HK$2,997 HKD