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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 $1,600 NZD
$902 USD
As of October 30, 2026
Save $5,319 NZD (77%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,920 NZD 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 $1,600 to $6,920, a $5,319 spread on the same certified stone. Brilliant Earth lists it at $6,920. 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $6,920 NZD|Low: $1,600 NZD|High: $9,067 NZD|Avg: $4,494 NZD|-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 31, 2026
Retailer 4$1,600 NZD
Retailer 19$1,741 NZD
Retailer 6$1,790 NZD
Retailer 16$1,856 NZD
Retailer 5$2,158 NZD
Retailer 15$2,165 NZD
Retailer 20$2,594 NZD
Retailer 2$2,857 NZD
Retailer 13$2,960 NZD
Retailer 7$2,976 NZD
Retailer 14$3,412 NZD
Retailer 10$4,129 NZD
Retailer 3$5,138 NZD
Retailer 17$5,218 NZD
Retailer 8$5,507 NZD
Retailer 9$6,092 NZD
Retailer 11$6,233 NZD
Retailer 18$6,303 NZD
Retailer 12$6,449 NZD
Brilliant Earth$6,920 NZD

36 data points across 20 retailers

21 retailers$1,600 NZD to $6,920 NZD

A
Cheapest Retailer
-
$1,600 NZD
$902 USD
A
Retailer 2
-
$1,741 NZD
$981 USD
View
A
Retailer 3
-
$1,790 NZD
$1,009 USD
View
Final sale: no returns
A
Retailer 4
-
$1,856 NZD
$1,046 USD
View
A
Retailer 5
-
$2,158 NZD
HK$9,500 HKD
View
A
Retailer 6
-
$2,165 NZD
$1,220 USD
View
Retailer 7
-
$2,323 NZD
$1,309 USD
View
Price last confirmed 14 days ago
A
Retailer 8
-
$2,594 NZD
$1,462 USD
View
A
Retailer 9
-
$2,857 NZD
£1,268 GBP
View
A
Retailer 10
-
$2,960 NZD
€1,589 EUR
View
A
Retailer 11
-
$2,976 NZD
$1,677 USD
View
B+
Retailer 12
-
$3,412 NZD
ZAR 31,066 ZAR
View
B+
Retailer 13
-
$4,129 NZD
$2,327 USD
View
B+
Retailer 14
-
$5,138 NZD
£2,280 GBP
View
B
Retailer 15
-
$5,218 NZD
$2,941 USD
View
B+
Retailer 16
-
$5,507 NZD
$3,104 USD
View
B
Retailer 17
-
$6,092 NZD
$3,433 USD
View
B
Retailer 18
-
$6,233 NZD
SGD 4,747 SGD
View
B
Retailer 19
-
$6,303 NZD
£2,797 GBP
View
B
Retailer 20
-
$6,449 NZD
$3,634 USD
View
Most Expensive
B
Brilliant Earth
20860257A · Oct 30
$6,920 NZD
$3,900 USD
View
20 more retailers have this diamond
Prices start from $1,600 NZDSave up to $5,319 NZD

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
$1,600 NZD