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Cushion|Lab Grown|IGI

1.87ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG691592978

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG691592978

Diamond specifications and retailer prices

From $422 SGD
$330 USD
As of October 30, 2026
Save $2,186 SGD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,608 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 top-tier cut grade and certified by IGI LG691592978 or 691592978. Listed at 19 retailers as of October 29, 2026, with prices from $422 to $2,608, a $2,186 spread on the same certified stone. Brilliant Earth lists it at $2,608. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.87
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691592978
Dimensions8.07 × 6.48 × 4.55 mm
L/W Ratio1.25
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
8.07 mm6.48 mm1.87 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691592978
Side View
Table 62.0%Crown 37.3°Girdle: MED-THKPavilion 41°Culet: NoneDepth 70.2%

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 30
Current: $2,608 SGD|Low: $422 SGD|High: $2,749 SGD|Avg: $1,153 SGD|-5.1%
Brilliant Earth
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 30, 2026
Retailer 6$422 SGD
Retailer 4$469 SGD
Retailer 3$770 SGD
Retailer 7$772 SGD
Retailer 10$773 SGD
Retailer 9$807 SGD
Retailer 2$832 SGD
Retailer 5$915 SGD
Retailer 8$1,092 SGD
Retailer 14$1,649 SGD
Retailer 13$1,682 SGD
Retailer 11$1,886 SGD
Retailer 12$1,891 SGD
Brilliant Earth$2,608 SGD

43 data points across 14 retailers

19 retailers$422 SGD to $2,608 SGD

A
Cheapest Retailer
-
$422 SGD
$330 USD
Final sale: no returns
A
Retailer 2
-
$469 SGD
$367 USD
View
A
Retailer 3
-
$770 SGD
$602 USD
View
A
Retailer 4
-
$772 SGD
€575 EUR
View
A
Retailer 5
-
$773 SGD
$605 USD
View
A
Retailer 6
-
$807 SGD
ZAR 10,195 ZAR
View
A
Retailer 7
-
$832 SGD
£513 GBP
View
A
Retailer 8
-
$915 SGD
$716 USD
View
B+
Retailer 9
-
$988 SGD
$773 USD
View
B+
Retailer 10
-
$1,092 SGD
A$1,314 AUD
View
B
Retailer 11
-
$1,571 SGD
$1,229 USD
View
B
Retailer 12
-
$1,649 SGD
$1,290 USD
View
Retailer 13
-
$1,682 SGD
A$2,024 AUD
View
Price last confirmed 22 days ago
B
Retailer 14
-
$1,806 SGD
$1,413 USD
View
B
Retailer 15
-
$1,831 SGD
£1,128 GBP
View
Retailer 16
-
$1,886 SGD
$1,475 USD
View
Price last confirmed 12 days ago
B
Retailer 17
-
$1,891 SGD
£1,165 GBP
View
B
Retailer 18
-
$2,051 SGD
$1,604 USD
View
Most Expensive
B
Brilliant Earth
13554911A · Oct 29
$2,608 SGD
$2,040 USD
View
18 more retailers have this diamond
Prices start from $422 SGDSave up to $2,186 SGD

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
$422 SGD