Marquise|Lab Grown|IGI

1.28ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG831608948

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831608948

Diamond specifications and retailer prices

From $203 USD
As of October 24, 2026
Save $911 USD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,114 USD at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.28ct lab-grown marquise diamond

This 1.28ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831608948 or 831608948. Listed at 20 retailers as of October 24, 2026, with prices from $203 to $1,114, a $911 spread on the same certified stone. Reve Diamonds lists it at $1,114. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle31°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831608948
Dimensions10.91 × 5.85 × 3.56 mm
L/W Ratio1.86
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.91 mm5.85 mm1.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG831608948
Side View
Table 60.0%Crown 31°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 24
Current: $730 USD|Low: $170 USD|High: $1,120 USD|Avg: $515 USD|-18.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Reve Diamonds
October 30, 2026
Retailer 19$175 USD
Retailer 6$195 USD
Retailer 17$203 USD
Retailer 2$217 USD
Retailer 10$243 USD
Retailer 12$272 USD
Retailer 14$360 USD
Retailer 16$367 USD
Retailer 4$386 USD
Retailer 13$386 USD
Retailer 7$468 USD
Retailer 5$471 USD
Retailer 3$546 USD
Retailer 11$665 USD
Retailer 18$697 USD
Retailer 9$709 USD
Retailer 1$730 USD
Retailer 8$752 USD
Retailer 15$1,015 USD
Reve Diamonds$1,114 USD

28 data points across 20 retailers

20 retailers$203 USD to $1,114 USD

Retailer 1
-
$175 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$203 USD
View
A
Retailer 3
-
$217 USD
View
A
Retailer 4
-
$243 USD
HK$1,900 HKD
View
A
Retailer 5
-
$272 USD
£214 GBP
View
A
Retailer 6
-
$360 USD
€343 EUR
View
Retailer 7
-
$367 USD
ZAR 5,923 ZAR
View
Price last confirmed 8 days ago
A
Retailer 8
-
$386 USD
View
A
Retailer 9
-
$386 USD
£304 GBP
View
A
Retailer 10
-
$468 USD
View
A
Retailer 11
-
$471 USD
View
B+
Retailer 12
-
$546 USD
View
B+
Retailer 13
-
$665 USD
View
B+
Retailer 14
-
$697 USD
View
B+
Retailer 15
-
$709 USD
SGD 958 SGD
View
B
Retailer 16
-
$718 USD
View
B+
Retailer 17
-
$730 USD
View
B+
Retailer 18
-
$752 USD
View
B
Retailer 19
-
$1,015 USD
£799 GBP
View
Most Expensive
B
Reve Diamonds
49C99D948 · Oct 25
$1,114 USD
View
19 more retailers have this diamond
Prices start from $203 USDSave up to $911 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
1.28ct Marquise
$203 USD