Cushion|Lab Grown|IGI

1.87ct D VS1 Cushion Lab Grown Diamond

VG • D/VS1 • IGI LG831617193

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG831617193

Diamond specifications and retailer prices

From $309 USD
As of October 28, 2026
Save $1,129 USD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,455 USD at Rare Carat · As of October 21, 2026
View at Rare Carat

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 D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG831617193 or 831617193. Listed at 14 retailers as of October 28, 2026, with a 365% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.87
Carat
D
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831617193
Dimensions7.19 × 7.08 × 4.80 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.19 mm7.08 mm1.87 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831617193
Side View
Table 62.0%Crown 35.5°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 67.8%

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: $1,455 USD|Low: $297 USD|High: $1,475 USD|Avg: $836 USD|-1.4%
Rare Carat
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
October 29, 2026
Retailer 4$309 USD
Retailer 11$384 USD
Retailer 12$535 USD
Retailer 5$566 USD
Retailer 7$580 USD
Retailer 10$589 USD
Retailer 2$602 USD
Retailer 14$766 USD
Retailer 9$797 USD
Retailer 3$1,153 USD
Retailer 13$1,319 USD
Retailer 8$1,380 USD
Retailer 6$1,438 USD
Rare Carat$1,455 USD

37 data points across 14 retailers

14 retailers$309 USD to $1,438 USD

A
Cheapest Retailer
-
$309 USD
Final sale: no returns
A
Retailer 2
-
$384 USD
£302 GBP
View
Price last confirmed 12 days ago
A
Retailer 3
-
$535 USD
View
A
Retailer 4
-
$566 USD
View
A
Retailer 5
-
$580 USD
€552 EUR
View
A
Retailer 6
-
$589 USD
ZAR 9,514 ZAR
View
A
Retailer 7
-
$602 USD
£474 GBP
View
B+
Retailer 8
-
$766 USD
View
B+
Retailer 9
-
$797 USD
A$1,226 AUD
View
B
Retailer 10
-
$1,153 USD
View
B
Retailer 11
-
$1,319 USD
View
B
Retailer 12
-
$1,380 USD
£1,087 GBP
View
B
Retailer 13
-
$1,438 USD
View
Most Expensive
B
Rare Carat
1009775 · Oct 21
$1,455 USD
View
Price last confirmed 8 days ago
13 more retailers have this diamond
Prices start from $309 USDSave up to $1,129 USD

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
$309 USD