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Cushion|Lab Grown|IGI

1.65ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG485151098

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG485151098

Diamond specifications and retailer prices

From HK$1,632 HKD
$208 USD
As of October 30, 2026
Save HK$12,335 HKD (88%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$13,967 HKD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.65ct lab-grown cushion diamond

This 1.65ct lab-grown cushion 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 LG485151098 or 485151098. Listed at 14 retailers as of October 29, 2026, with prices from HK$1,632 to HK$13,967, a HK$12,335 spread on the same certified stone. Do Amore Diamonds lists it at HK$13,967. 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

1.65
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG485151098
Dimensions7.48 × 6.52 × 4.41 mm
L/W Ratio1.15
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
7.48 mm6.52 mm1.65 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG485151098
Side View
Table 62.5%Crown 35.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 67.6%

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$3,667 HKD|Low: HK$1,632 HKD|High: HK$15,144 HKD|Avg: HK$5,226 HKD|+4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 9HK$1,632 HKD
Retailer 7HK$1,805 HKD
Retailer 2HK$2,432 HKD
Retailer 3HK$3,263 HKD
Retailer 1HK$3,667 HKD
Retailer 10HK$4,465 HKD
Retailer 5HK$6,787 HKD
Retailer 8HK$7,390 HKD
Retailer 4HK$9,327 HKD
Retailer 6HK$9,573 HKD

42 data points across 10 retailers

14 retailersHK$1,632 HKD to HK$13,967 HKD

A
Cheapest Retailer
-
HK$1,632 HKD
$208 USD
Final sale: no returns
A
Retailer 2
-
HK$1,805 HKD
$230 USD
View
B+
Retailer 3
-
HK$2,432 HKD
$310 USD
View
A
Retailer 4
-
HK$3,263 HKD
€396 EUR
View
A
Retailer 5
-
HK$3,311 HKD
$422 USD
View
A
Retailer 6
-
HK$3,667 HKD
£368 GBP
View
A
Retailer 7
-
HK$4,465 HKD
$569 USD
View
B+
Retailer 8
-
HK$6,718 HKD
$856 USD
View
Retailer 9
-
HK$6,787 HKD
$865 USD
View
Price last confirmed 9 days ago
Retailer 10
-
HK$7,183 HKD
$915 USD
View
Price last confirmed 109 days ago
B+
Retailer 11
-
HK$7,390 HKD
$942 USD
View
B
Retailer 12
-
HK$9,327 HKD
£936 GBP
View
B
Retailer 13
-
HK$9,573 HKD
$1,220 USD
View
Most Expensive
B
Do Amore Diamonds
27-D3AE044AA · Oct 29
HK$13,967 HKD
$1,780 USD
View
13 more retailers have this diamond
Prices start from HK$1,632 HKDSave up to HK$12,335 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
1.65ct Cushion
HK$1,632 HKD