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Marquise|Lab Grown|IGI

3.75ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG768687318

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768687318

Diamond specifications and retailer prices

From $2,457 AUD
$1,726 USD
As of October 30, 2026
Save $7,540 AUD (75%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,998 AUD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.75ct lab-grown marquise diamond

This 3.75ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG768687318 or 768687318. Listed at 20 retailers as of October 30, 2026, with prices from $2,457 to $9,998, a $7,540 spread on the same certified stone. Taylor and Hart lists it at $9,998. 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

3.75
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768687318
Dimensions15.39 × 8.00 × 5.06 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.39 mm8.00 mm3.75 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768687318
Side View
Table 59.0%Crown 36.7°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 63.3%

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: $4,041 AUD|Low: $2,359 AUD|High: $15,517 AUD|Avg: $6,339 AUD|-32.9%
Retailer 1
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
Taylor and Hart
October 31, 2026
Retailer 3$2,457 AUD
Retailer 10$2,850 AUD
Retailer 12$2,995 AUD
Retailer 18$3,089 AUD
Retailer 8$3,162 AUD
Retailer 1$4,041 AUD
Retailer 16$4,074 AUD
Retailer 7$4,249 AUD
Retailer 5$4,439 AUD
Retailer 15$4,445 AUD
Retailer 6$5,901 AUD
Retailer 17$6,447 AUD
Retailer 13$6,618 AUD
Retailer 2$7,237 AUD
Retailer 9$7,680 AUD
Retailer 14$8,183 AUD
Retailer 11$8,257 AUD
Retailer 4$8,584 AUD
Taylor and Hart$9,998 AUD

39 data points across 19 retailers

20 retailers$2,457 AUD to $9,998 AUD

A
Cheapest Retailer
-
$2,457 AUD
$1,726 USD
B+
Retailer 2
-
$2,850 AUD
$2,002 USD
View
B+
Retailer 3
-
$2,995 AUD
$2,104 USD
View
Final sale: no returns
B+
Retailer 4
-
$3,089 AUD
$2,170 USD
View
B+
Retailer 5
-
$3,162 AUD
$2,221 USD
View
B+
Retailer 6
-
$4,041 AUD
£2,235 GBP
View
B+
Retailer 7
-
$4,074 AUD
$2,862 USD
View
B+
Retailer 8
-
$4,249 AUD
$2,985 USD
View
B+
Retailer 9
-
$4,439 AUD
$3,118 USD
View
B+
Retailer 10
-
$4,445 AUD
€2,974 EUR
View
B
Retailer 11
-
$5,901 AUD
£3,264 GBP
View
Retailer 12
-
$6,447 AUD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$6,618 AUD
ZAR 75,106 ZAR
View
Retailer 14
-
$7,237 AUD
View
Price last confirmed 22 days ago
B
Retailer 15
-
$7,265 AUD
$5,103 USD
View
B
Retailer 16
-
$7,680 AUD
$5,395 USD
View
B
Retailer 17
-
$8,183 AUD
£4,526 GBP
View
B
Retailer 18
-
$8,257 AUD
$5,800 USD
View
Retailer 19
-
$8,584 AUD
$6,030 USD
View
Price last confirmed 24 days ago
Most Expensive
B
Taylor and Hart
IVSHNKJ · Oct 30
$9,998 AUD
$7,023 USD
View
19 more retailers have this diamond
Prices start from $2,457 AUDSave up to $7,540 AUD

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
3.75ct Marquise
$2,457 AUD