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Cushion|Lab Grown|IGI

0.51ct E IF Cushion Lab Grown Diamond

VG • E/IF • IGI LG816658270

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816658270

Diamond specifications and retailer prices

From $312 SGD
$244 USD
As of October 30, 2026
Save $1,287 SGD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,599 SGD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 0.51ct lab-grown cushion diamond

This 0.51ct lab-grown cushion sits in the half to three-quarter carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG816658270 or 816658270. Listed at 14 retailers as of October 30, 2026, with prices from $312 to $1,599, a $1,287 spread on the same certified stone. Reve Diamonds lists it at $1,599. 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

0.51
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.8°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816658270
Dimensions5.09 × 4.22 × 2.86 mm
L/W Ratio1.21
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
5.09 mm4.22 mm0.51 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG816658270
Side View
Table 62.0%Crown 33.8°Girdle: MED-THKPavilion 36.8°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 30
Current: $562 SGD|Low: $312 SGD|High: $1,918 SGD|Avg: $979 SGD|-24.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
October 30, 2026
Retailer 3$312 SGD
Retailer 11$352 SGD
Retailer 5$470 SGD
Retailer 4$499 SGD
Retailer 1$562 SGD
Retailer 10$690 SGD
Retailer 6$742 SGD
Retailer 13$803 SGD
Retailer 2$1,104 SGD
Retailer 12$1,445 SGD
Retailer 7$1,534 SGD
Retailer 9$1,534 SGD
Retailer 8$1,536 SGD
Reve Diamonds$1,599 SGD

24 data points across 14 retailers

14 retailers$312 SGD to $1,599 SGD

A
Cheapest Retailer
-
$312 SGD
$244 USD
Final sale: no returns
A
Retailer 2
-
$352 SGD
$275 USD
View
A
Retailer 3
-
$470 SGD
$368 USD
View
A
Retailer 4
-
$499 SGD
$390 USD
View
A
Retailer 5
-
$562 SGD
$440 USD
View
B+
Retailer 6
-
$690 SGD
ZAR 8,716 ZAR
View
B+
Retailer 7
-
$742 SGD
€553 EUR
View
B+
Retailer 8
-
$803 SGD
$628 USD
View
B
Retailer 9
-
$1,104 SGD
CA$1,200 CAD
View
B
Retailer 10
-
$1,445 SGD
$1,130 USD
View
B
Retailer 11
-
$1,534 SGD
$1,200 USD
View
B
Retailer 12
-
$1,534 SGD
$1,200 USD
View
B
Retailer 13
-
$1,536 SGD
£946 GBP
View
Most Expensive
B
Reve Diamonds
CCEBE8890 · Oct 30
$1,599 SGD
$1,250 USD
View
13 more retailers have this diamond
Prices start from $312 SGDSave up to $1,287 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
0.51ct Cushion
$312 SGD