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Cushion|Lab Grown|IGI

1.61ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • IGI LG523278357

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG523278357

Diamond specifications and retailer prices

From HK$1,616 HKD
$206 USD
As of October 28, 2026
Save HK$7,357 HKD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$8,973 HKD at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 1.61ct lab-grown cushion diamond

This 1.61ct 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 top-tier cut grade and certified by IGI LG523278357 or 523278357. Listed at 14 retailers as of October 28, 2026, with prices from HK$1,616 to HK$8,973, a HK$7,357 spread on the same certified stone. Reve Diamonds lists it at HK$8,973. 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

1.61
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle30.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523278357
Dimensions7.54 × 6.05 × 4.08 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Blue 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
7.54 mm6.05 mm1.61 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523278357
Side View
Table 58.0%Crown 35.8°Girdle: MED-THKPavilion 30.4°Culet: NoneDepth 67.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: HK$8,429 HKD|Low: HK$1,616 HKD|High: HK$8,630 HKD|Avg: HK$4,453 HKD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 2HK$1,616 HKD
Retailer 9HK$1,797 HKD
Retailer 4HK$2,416 HKD
Retailer 6HK$2,941 HKD
Retailer 5HK$3,229 HKD
Retailer 3HK$3,557 HKD
Retailer 11HK$4,440 HKD
Retailer 8HK$4,519 HKD
Retailer 7HK$6,511 HKD
Retailer 10HK$8,394 HKD
Retailer 1HK$8,429 HKD

42 data points across 11 retailers

14 retailersHK$1,616 HKD to HK$8,973 HKD

A
Cheapest Retailer
-
HK$1,616 HKD
$206 USD
Final sale: no returns
A
Retailer 2
-
HK$1,797 HKD
$229 USD
View
B+
Retailer 3
-
HK$2,416 HKD
$308 USD
View
A
Retailer 4
-
HK$2,941 HKD
€357 EUR
View
A
Retailer 5
-
HK$3,229 HKD
£324 GBP
View
A
Retailer 6
-
HK$3,557 HKD
$453 USD
View
A
Retailer 7
-
HK$4,127 HKD
$526 USD
View
A
Retailer 8
-
HK$4,440 HKD
$566 USD
View
B+
Retailer 9
-
HK$4,519 HKD
$576 USD
View
B+
Retailer 10
-
HK$6,190 HKD
$789 USD
View
B+
Retailer 11
-
HK$6,511 HKD
$830 USD
View
Price last confirmed 7 days ago
B
Retailer 12
-
HK$8,394 HKD
$1,070 USD
View
B+
Retailer 13
-
HK$8,429 HKD
£846 GBP
View
Most Expensive
B
Reve Diamonds
EF81FED1D · Oct 28
HK$8,973 HKD
$1,144 USD
View
13 more retailers have this diamond
Prices start from HK$1,616 HKDSave up to HK$7,357 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
1.61ct Cushion
HK$1,616 HKD