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Marquise|Lab Grown|IGI

1.70ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG817693361

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG817693361

Diamond specifications and retailer prices

From $1,153 SGD
$902 USD
As of October 30, 2026
Save $3,833 SGD (77%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,986 SGD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.7ct lab-grown marquise diamond

This 1.7ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG817693361 or 817693361. Listed at 21 retailers as of October 30, 2026, with prices from $1,153 to $4,986, a $3,833 spread on the same certified stone. Brilliant Earth lists it at $4,986. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817693361
Dimensions11.99 × 6.28 × 3.93 mm
L/W Ratio1.91
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
11.99 mm6.28 mm1.70 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817693361
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.6%

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: $4,986 SGD|Low: $1,153 SGD|High: $6,533 SGD|Avg: $3,173 SGD|-23.7%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 30, 2026
Retailer 4$1,153 SGD
Retailer 19$1,254 SGD
Retailer 6$1,290 SGD
Retailer 16$1,337 SGD
Retailer 5$1,555 SGD
Retailer 15$1,560 SGD
Retailer 20$1,869 SGD
Retailer 2$2,059 SGD
Retailer 13$2,133 SGD
Retailer 7$2,144 SGD
Retailer 14$2,458 SGD
Retailer 10$2,975 SGD
Retailer 3$3,702 SGD
Retailer 17$3,760 SGD
Retailer 8$3,968 SGD
Retailer 9$4,389 SGD
Retailer 11$4,491 SGD
Retailer 18$4,541 SGD
Retailer 12$4,646 SGD
Brilliant Earth$4,986 SGD

35 data points across 20 retailers

21 retailers$1,153 SGD to $4,986 SGD

A
Cheapest Retailer
-
$1,153 SGD
$902 USD
A
Retailer 2
-
$1,254 SGD
$981 USD
View
A
Retailer 3
-
$1,290 SGD
$1,009 USD
View
Final sale: no returns
A
Retailer 4
-
$1,337 SGD
$1,046 USD
View
A
Retailer 5
-
$1,555 SGD
HK$9,500 HKD
View
A
Retailer 6
-
$1,560 SGD
$1,220 USD
View
Retailer 7
-
$1,673 SGD
$1,309 USD
View
Price last confirmed 13 days ago
A
Retailer 8
-
$1,869 SGD
$1,462 USD
View
A
Retailer 9
-
$2,059 SGD
£1,268 GBP
View
A
Retailer 10
-
$2,133 SGD
€1,589 EUR
View
A
Retailer 11
-
$2,144 SGD
$1,677 USD
View
B+
Retailer 12
-
$2,458 SGD
ZAR 31,066 ZAR
View
B+
Retailer 13
-
$2,975 SGD
$2,327 USD
View
B+
Retailer 14
-
$3,702 SGD
£2,280 GBP
View
B
Retailer 15
-
$3,760 SGD
$2,941 USD
View
B+
Retailer 16
-
$3,968 SGD
$3,104 USD
View
B
Retailer 17
-
$4,389 SGD
$3,433 USD
View
B
Retailer 18
-
$4,491 SGD
View
B
Retailer 19
-
$4,541 SGD
£2,797 GBP
View
B
Retailer 20
-
$4,646 SGD
$3,634 USD
View
Most Expensive
B
Brilliant Earth
20860257A · Oct 30
$4,986 SGD
$3,900 USD
View
20 more retailers have this diamond
Prices start from $1,153 SGDSave up to $3,833 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
1.70ct Marquise
$1,153 SGD