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Cushion|Lab Grown|IGI

1.70ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG526280098

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG526280098

Diamond specifications and retailer prices

From HK$2,507 HKD
$320 USD
As of October 30, 2026
Save HK$13,576 HKD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$16,084 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.7ct lab-grown cushion diamond

This 1.7ct lab-grown cushion 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 LG526280098 or 526280098. Listed at 10 retailers as of October 30, 2026, with prices from HK$2,507 to HK$16,084, a HK$13,576 spread on the same certified stone. Do Amore Diamonds lists it at HK$16,084. 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

1.70
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526280098
Dimensions7.80 × 6.55 × 4.33 mm
L/W Ratio1.19
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
7.80 mm6.55 mm1.70 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526280098
Side View
Table 60.0%Crown 36.5°Girdle: MED-THKPavilion 37.2°Culet: NoneDepth 66.1%

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: Oct 30
Current: HK$16,084 HKD|Low: HK$1,287 HKD|High: HK$18,830 HKD|Avg: HK$6,470 HKD|-1.0%
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
October 31, 2026
Retailer 4HK$1,287 HKD
Retailer 11HK$2,507 HKD
Retailer 12HK$2,801 HKD
Retailer 10HK$3,076 HKD
Retailer 2HK$3,674 HKD
Retailer 8HK$3,789 HKD
Retailer 9HK$4,754 HKD
Retailer 7HK$7,359 HKD
Retailer 3HK$9,023 HKD
Retailer 5HK$9,207 HKD
Retailer 6HK$14,515 HKD
Do Amore DiamondsHK$16,084 HKD

23 data points across 12 retailers

10 retailersHK$2,507 HKD to HK$16,084 HKD

A
Cheapest Retailer
-
HK$2,507 HKD
$320 USD
B+
Retailer 2
-
HK$2,801 HKD
$357 USD
View
A
Retailer 3
-
HK$3,076 HKD
$392 USD
View
A
Retailer 4
-
HK$3,674 HKD
€446 EUR
View
A
Retailer 5
-
HK$3,789 HKD
$483 USD
View
A
Retailer 6
-
HK$4,754 HKD
$606 USD
View
B+
Retailer 7
-
HK$7,359 HKD
$938 USD
View
B
Retailer 8
-
HK$9,207 HKD
£924 GBP
View
B
Retailer 9
-
HK$14,515 HKD
$1,850 USD
View
Most Expensive
B
Do Amore Diamonds
27-5F90261FA · Oct 31
HK$16,084 HKD
$2,050 USD
View
9 more retailers have this diamond
Prices start from HK$2,507 HKDSave up to HK$13,576 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
1.70ct Cushion
HK$2,507 HKD