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Cushion|Lab Grown|IGI

1.59ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG693553609

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG693553609

Diamond specifications and retailer prices

From HK$3,225 HKD
$411 USD
As of October 30, 2026
Save HK$6,190 HKD (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$9,415 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.59ct lab-grown cushion diamond

This 1.59ct 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 LG693553609 or 693553609. Listed at 9 retailers as of October 30, 2026, with prices from HK$3,225 to HK$9,415, a HK$6,190 spread on the same certified stone. Brilliant Earth lists it at HK$9,415. 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

1.59
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.3°
Pavilion angle42.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG693553609
Dimensions8.02 × 6.31 × 4.23 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.02 mm6.31 mm1.59 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG693553609
Side View
Table 64.0%Crown 29.3°Girdle: MED-STKPavilion 42.4°Culet: NoneDepth 67.0%

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$9,415 HKD|Low: HK$1,836 HKD|High: HK$10,670 HKD|Avg: HK$4,861 HKD|-11.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 6HK$1,836 HKD
Retailer 5HK$2,056 HKD
Retailer 7HK$3,225 HKD
Retailer 2HK$3,229 HKD
Retailer 3HK$3,337 HKD
Retailer 9HK$4,182 HKD
Retailer 8HK$4,480 HKD
Retailer 4HK$8,639 HKD
Brilliant EarthHK$9,415 HKD

35 data points across 9 retailers

9 retailersHK$3,225 HKD to HK$9,415 HKD

Retailer 1
-
HK$1,836 HKD
$234 USD
Price last confirmed 20 days ago
Retailer 2
-
HK$2,056 HKD
£206 GBP
View
Price last confirmed 15 days ago
B+
Retailer 3
-
HK$3,225 HKD
$411 USD
View
A
Retailer 4
-
HK$3,229 HKD
€392 EUR
View
A
Retailer 5
-
HK$3,337 HKD
£335 GBP
View
A
Retailer 6
-
HK$4,182 HKD
$533 USD
View
A
Retailer 7
-
HK$4,480 HKD
$571 USD
View
B
Retailer 8
-
HK$8,639 HKD
£867 GBP
View
Most Expensive
B
Brilliant Earth
13584838A · Oct 31
HK$9,415 HKD
$1,200 USD
View
8 more retailers have this diamond
Prices start from HK$3,225 HKDSave up to HK$6,190 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
1.59ct Cushion
HK$3,225 HKD