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Cushion|Lab Grown|IGI

0.99ct E VS1 Cushion Lab Grown Diamond

VG • E/VS1 • IGI LG686501524

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG686501524

Diamond specifications and retailer prices

From $225 AUD
$158 USD
As of October 30, 2026
Save $1,872 AUD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,097 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 0.99ct lab-grown cushion diamond

This 0.99ct lab-grown cushion sits in the just-under-one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG686501524 or 686501524. Listed at 16 retailers as of October 28, 2026, with prices from $225 to $2,097, a $1,872 spread on the same certified stone. Queensmith lists it at $2,097. 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

0.99
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG686501524
Dimensions6.41 × 5.22 × 3.65 mm
L/W Ratio1.23
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
6.41 mm5.22 mm0.99 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG686501524
Side View
Table 64.0%Crown 35.6°Girdle: MED-THKPavilion 37.8°Culet: NoneDepth 69.9%

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: $429 AUD|Low: $225 AUD|High: $1,182 AUD|Avg: $601 AUD|+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 30, 2026
Retailer 2$225 AUD
Retailer 8$251 AUD
Retailer 1$429 AUD
Retailer 5$439 AUD
Retailer 7$452 AUD
Retailer 6$475 AUD
Retailer 4$481 AUD
Retailer 12$598 AUD
Retailer 11$634 AUD
Retailer 10$698 AUD
Retailer 3$1,110 AUD
Retailer 9$1,170 AUD

36 data points across 12 retailers

16 retailers$225 AUD to $2,097 AUD

A
Cheapest Retailer
-
$225 AUD
$158 USD
Final sale: no returns
A
Retailer 2
-
$251 AUD
$176 USD
View
B+
Retailer 3
-
$339 AUD
$238 USD
View
A
Retailer 4
-
$429 AUD
£237 GBP
View
A
Retailer 5
-
$439 AUD
€294 EUR
View
A
Retailer 6
-
$452 AUD
ZAR 5,127 ZAR
View
A
Retailer 7
-
$475 AUD
£263 GBP
View
A
Retailer 8
-
$481 AUD
$338 USD
View
B+
Retailer 9
-
$598 AUD
$420 USD
View
B+
Retailer 10
-
$634 AUD
$445 USD
View
Retailer 11
-
$698 AUD
$490 USD
View
Price last confirmed 11 days ago
Retailer 12
-
$712 AUD
$500 USD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
$883 AUD
$620 USD
View
B
Retailer 14
-
$1,170 AUD
£647 GBP
View
B
Retailer 15
-
$1,434 AUD
$1,007 USD
View
Most Expensive
B
Queensmith
LG686501524 · Oct 28
$2,097 AUD
£1,160 GBP
View
15 more retailers have this diamond
Prices start from $225 AUDSave up to $1,872 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
0.99ct Cushion
$225 AUD