Cushion|Lab Grown|IGI

1.83ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG839684867

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG839684867

Diamond specifications and retailer prices

From $1,414 USD
£1,113 GBP
As of October 27, 2026
Save $4,989 USD (78%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,403 USD at Riddles Jewelry · As of October 27, 2026
View at Riddles Jewelry

About this 1.83ct lab-grown cushion diamond

This 1.83ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG839684867 or 839684867. Listed at 19 retailers as of October 27, 2026, with prices from $1,414 to $6,403, a $4,989 spread on the same certified stone. Riddles Jewelry lists it at $6,403. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.83
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839684867
Dimensions8.60 × 6.39 × 4.27 mm
L/W Ratio1.35
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
8.60 mm6.39 mm1.83 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839684867
Side View
Table 61.0%Crown 35.9°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 66.8%

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 27
Current: $1,894 USD|Low: $1,390 USD|High: $6,403 USD|Avg: $3,072 USD|+0.5%
Retailer 1
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Retailer 19
Riddles Jewelry
October 27, 2026
Retailer 12$1,414 USD
Retailer 4$1,416 USD
Retailer 16$1,420 USD
Retailer 8$1,530 USD
Retailer 7$1,690 USD
Retailer 17$1,734 USD
Retailer 13$1,795 USD
Retailer 1$1,894 USD
Retailer 9$2,132 USD
Retailer 15$2,271 USD
Retailer 5$3,052 USD
Retailer 3$3,353 USD
Retailer 18$3,444 USD
Retailer 6$3,777 USD
Retailer 2$3,985 USD
Retailer 14$4,234 USD
Retailer 11$4,356 USD
Retailer 19$5,223 USD
Retailer 10$6,009 USD
Riddles Jewelry$6,403 USD

22 data points across 20 retailers

19 retailers$1,414 USD to $6,403 USD

A
Cheapest Retailer
-
$1,414 USD
£1,113 GBP
A
Retailer 2
-
$1,420 USD
View
A
Retailer 3
-
$1,530 USD
View
A
Retailer 4
-
$1,690 USD
View
B+
Retailer 5
-
$1,734 USD
View
A
Retailer 6
-
$1,795 USD
£1,413 GBP
View
B+
Retailer 7
-
$1,894 USD
€1,804 EUR
View
B+
Retailer 8
-
$2,132 USD
View
B+
Retailer 9
-
$2,271 USD
ZAR 36,682 ZAR
View
B+
Retailer 10
-
$3,052 USD
View
B
Retailer 11
-
$3,353 USD
View
B
Retailer 12
-
$3,444 USD
£2,712 GBP
View
B
Retailer 13
-
$3,777 USD
CA$5,246 CAD
View
B
Retailer 14
-
$3,985 USD
View
B
Retailer 15
-
$4,234 USD
£3,334 GBP
View
B
Retailer 16
-
$4,356 USD
View
Retailer 17
-
$5,223 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
$6,009 USD
View
Most Expensive
B
Riddles Jewelry
1988600944 · Oct 27
$6,403 USD
View
18 more retailers have this diamond
Prices start from $1,414 USDSave up to $4,989 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
1.83ct Cushion
$1,414 USD