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Marquise|Lab Grown|IGI

3.00ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG780663620

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780663620

Diamond specifications and retailer prices

From $5,882 NZD
$3,315 USD
As of October 30, 2026
Save $30,216 NZD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $36,098 NZD at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 3ct lab-grown marquise diamond

This 3ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663620 or 780663620. Listed at 13 retailers as of October 29, 2026, with prices from $5,882 to $36,098, a $30,216 spread on the same certified stone. Blue Nile lists it at $36,098. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.00
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663620
Dimensions14.54 × 7.49 × 4.73 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
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
14.54 mm7.49 mm3.00 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663620
Side View
Table 59.0%Crown 36.7°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 63.2%

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: $36,098 NZD|Low: $5,882 NZD|High: $39,897 NZD|Avg: $16,653 NZD|-9.5%
Blue Nile
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
October 30, 2026
Retailer 10$5,882 NZD
Retailer 6$6,091 NZD
Retailer 12$7,228 NZD
Retailer 2$10,905 NZD
Retailer 11$12,704 NZD
Retailer 14$12,731 NZD
Retailer 8$13,572 NZD
Retailer 9$17,878 NZD
Retailer 3$19,013 NZD
Retailer 5$19,233 NZD
Retailer 7$19,274 NZD
Retailer 13$22,250 NZD
Retailer 4$29,470 NZD
Blue Nile$36,098 NZD

40 data points across 14 retailers

13 retailers$5,882 NZD to $36,098 NZD

A
Cheapest Retailer
-
$5,882 NZD
$3,315 USD
A
Retailer 2
-
$7,228 NZD
$4,074 USD
View
B+
Retailer 3
-
$10,905 NZD
£4,840 GBP
View
B+
Retailer 4
-
$12,704 NZD
$7,160 USD
View
B+
Retailer 5
-
$12,731 NZD
$7,175 USD
View
B+
Retailer 6
-
$13,572 NZD
€7,285 EUR
View
B+
Retailer 7
-
$17,878 NZD
£7,934 GBP
View
B
Retailer 8
-
$19,013 NZD
$10,716 USD
View
B
Retailer 9
-
$19,233 NZD
$10,840 USD
View
B
Retailer 10
-
$19,274 NZD
ZAR 175,491 ZAR
View
B
Retailer 11
-
$22,250 NZD
$12,540 USD
View
B
Retailer 12
-
$29,470 NZD
$16,610 USD
View
Most Expensive
B
Blue Nile
29977966 · Oct 29
$36,098 NZD
$20,345 USD
View
12 more retailers have this diamond
Prices start from $5,882 NZDSave up to $30,216 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
3.00ct Marquise
$5,882 NZD