CaratHunter
Plans
Cushion|Lab Grown|IGI

1.70ct G SI1 Cushion Lab Grown Diamond

GD • G/SI1 • IGI LG478103526

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG478103526

Diamond specifications and retailer prices

From $557 AUD
$391 USD
As of November 1, 2026
Save $1,853 AUD (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,410 AUD at MOH London · As of November 1, 2026
View at MOH London

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG478103526 or 478103526. Listed at 12 retailers as of November 1, 2026, with prices from $557 to $2,410, a $1,853 spread on the same certified stone. MOH London lists it at $2,410. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
G
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478103526
Dimensions7.13 × 6.69 × 4.59 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.13 mm6.69 mm1.70 ctG / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478103526
Side View
Table 59.5%Crown 36.5°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 68.6%

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: Nov 1
Current: $2,410 AUD|Low: $557 AUD|High: $2,441 AUD|Avg: $1,139 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$557 AUD
Retailer 9$616 AUD
Retailer 8$674 AUD
Retailer 3$790 AUD
Retailer 4$904 AUD
Retailer 10$991 AUD
Retailer 5$992 AUD
Retailer 2$1,100 AUD
Retailer 7$2,378 AUD
MOH London$2,410 AUD

44 data points across 10 retailers

12 retailers$557 AUD to $2,410 AUD

A
Cheapest Retailer
-
$557 AUD
$391 USD
Final sale: no returns
Retailer 2
-
$616 AUD
$433 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$674 AUD
HK$3,700 HKD
View
B+
Retailer 4
-
$790 AUD
£437 GBP
View
B+
Retailer 5
-
$904 AUD
$635 USD
View
B+
Retailer 6
-
$904 AUD
$635 USD
View
B+
Retailer 7
-
$991 AUD
$696 USD
View
B+
Retailer 8
-
$992 AUD
$697 USD
View
B+
Retailer 9
-
$1,100 AUD
£609 GBP
View
B
Retailer 10
-
$2,043 AUD
$1,435 USD
View
C
Retailer 11
-
$2,378 AUD
$1,671 USD
View
Most Expensive
B
MOH London
LG478103526 · Nov 1
$2,410 AUD
£1,333 GBP
View
11 more retailers have this diamond
Prices start from $557 AUDSave up to $1,853 AUD

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
$557 AUD