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Cushion|Lab Grown|IGI

1.70ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG600340947

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG600340947

Diamond specifications and retailer prices

From HK$1,820 HKD
$232 USD
As of October 28, 2026
Save HK$12,382 HKD (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$14,202 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG600340947 or 600340947. Listed at 12 retailers as of October 28, 2026, with prices from HK$1,820 to HK$14,202, a HK$12,382 spread on the same certified stone. Brilliant Earth lists it at HK$14,202. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle32.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600340947
Dimensions7.30 × 6.55 × 4.31 mm
L/W Ratio1.11
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
7.30 mm6.55 mm1.70 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600340947
Side View
Table 59.0%Crown 35°Girdle: STK-THKPavilion 32.2°Culet: NoneDepth 65.8%

Caratlytics Score

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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 28
Current: HK$3,725 HKD|Low: HK$1,820 HKD|High: HK$9,558 HKD|Avg: HK$4,877 HKD|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 9HK$1,820 HKD
Retailer 10HK$2,310 HKD
Retailer 5HK$2,602 HKD
Retailer 7HK$2,731 HKD
Retailer 1HK$3,725 HKD
Retailer 11HK$4,088 HKD
Retailer 12HK$4,363 HKD
Retailer 4HK$5,421 HKD
Retailer 2HK$6,567 HKD
Retailer 3HK$6,913 HKD
Retailer 6HK$8,141 HKD
Retailer 8HK$9,558 HKD

39 data points across 12 retailers

12 retailersHK$1,820 HKD to HK$14,202 HKD

A
Cheapest Retailer
-
HK$1,820 HKD
$232 USD
Final sale: no returns
A
Retailer 2
-
HK$2,310 HKD
View
A
Retailer 3
-
HK$2,602 HKD
£261 GBP
View
B+
Retailer 4
-
HK$2,731 HKD
$348 USD
View
A
Retailer 5
-
HK$3,725 HKD
£374 GBP
View
A
Retailer 6
-
HK$4,088 HKD
$521 USD
View
A
Retailer 7
-
HK$4,363 HKD
$556 USD
View
B+
Retailer 8
-
HK$6,567 HKD
SGD 1,131 SGD
View
B+
Retailer 9
-
HK$6,913 HKD
$881 USD
View
B+
Retailer 10
-
HK$8,141 HKD
£817 GBP
View
B
Retailer 11
-
HK$9,558 HKD
$1,218 USD
View
Most Expensive
B
Brilliant Earth
22273641A · Oct 29
HK$14,202 HKD
$1,810 USD
View
11 more retailers have this diamond
Prices start from HK$1,820 HKDSave up to HK$12,382 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$1,820 HKD