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Cushion|Lab Grown|IGI

1.87ct G VVS1 Cushion Lab Grown Diamond

ID • G/VVS1 • IGI LG840635037

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840635037

Diamond specifications and retailer prices

From $423 AUD
$297 USD
As of November 1, 2026
Save $2,763 AUD (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,186 AUD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.87ct lab-grown cushion diamond

This 1.87ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840635037 or 840635037. Listed at 18 retailers as of November 1, 2026, with prices from $423 to $3,186, a $2,763 spread on the same certified stone. Helzberg Diamonds lists it at $3,186. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.87
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840635037
Dimensions8.91 × 6.28 × 4.16 mm
L/W Ratio1.42
Girdle conditionFaceted
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
8.91 mm6.28 mm1.87 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840635037
Side View
Table 61.0%Crown 34.5°Girdle: STK-THKPavilion 35.4°Culet: NoneDepth 66.2%

Caratlytics Score

How it works →
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: Nov 1
Current: $3,186 AUD|Low: $423 AUD|High: $3,815 AUD|Avg: $1,457 AUD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
Retailer 18
November 2, 2026
Retailer 5$423 AUD
Retailer 14$495 AUD
Retailer 17$698 AUD
Retailer 10$777 AUD
Retailer 11$807 AUD
Retailer 15$837 AUD
Retailer 8$861 AUD
Retailer 2$897 AUD
Retailer 4$1,088 AUD
Retailer 18$1,184 AUD
Retailer 7$1,332 AUD
Retailer 9$1,577 AUD
Retailer 6$1,648 AUD
Retailer 16$1,683 AUD
Retailer 13$1,877 AUD
Retailer 12$2,498 AUD
Retailer 3$2,861 AUD
Helzberg Diamonds$3,186 AUD

18 data points across 18 retailers

18 retailers$423 AUD to $3,186 AUD

A
Cheapest Retailer
-
$423 AUD
$297 USD
Final sale: no returns
A
Retailer 2
-
$495 AUD
£274 GBP
View
A
Retailer 3
-
$698 AUD
$490 USD
View
B+
Retailer 4
-
$777 AUD
$546 USD
View
A
Retailer 5
-
$807 AUD
ZAR 9,158 ZAR
View
A
Retailer 6
-
$837 AUD
€560 EUR
View
A
Retailer 7
-
$861 AUD
$605 USD
View
A
Retailer 8
-
$897 AUD
£496 GBP
View
A
Retailer 9
-
$1,088 AUD
View
A
Retailer 10
-
$1,184 AUD
$832 USD
View
B+
Retailer 11
-
$1,332 AUD
$936 USD
View
B+
Retailer 12
-
$1,577 AUD
$1,108 USD
View
B+
Retailer 13
-
$1,648 AUD
SGD 1,564 SGD
View
B+
Retailer 14
-
$1,683 AUD
$1,182 USD
View
B+
Retailer 15
-
$1,877 AUD
£1,038 GBP
View
B
Retailer 16
-
$2,498 AUD
$1,755 USD
View
B
Retailer 17
-
$2,861 AUD
$2,010 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJLGJN · Nov 1
$3,186 AUD
$2,238 USD
View
17 more retailers have this diamond
Prices start from $423 AUDSave up to $2,763 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
1.87ct Cushion
$423 AUD