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Marquise|Lab Grown|IGI

4.00ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG734536625

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG734536625

Diamond specifications and retailer prices

From $6,265 USD
As of October 30, 2026
Save $17,621 USD (74%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $27,063 USD at Novita Diamonds · As of September 29, 2026
View at Novita Diamonds

About this 4ct lab-grown marquise diamond

This 4ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG734536625 or 734536625. Listed at 20 retailers as of October 30, 2026, with a 281% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.00
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG734536625
Dimensions15.47 × 7.97 × 5.23 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.47 mm7.97 mm4.00 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG734536625
Side View
Table 65.0%Crown 37.5°Girdle: STK-VTKPavilion 40°Culet: NoneDepth 65.6%

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: $27,063 USD|Low: $5,168 USD|High: $27,063 USD|Avg: $12,693 USD
Novita Diamonds
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
October 30, 2026
Retailer 16$6,265 USD
Retailer 17$6,284 USD
Retailer 6$6,587 USD
Retailer 4$6,820 USD
Retailer 9$7,495 USD
Retailer 3$8,256 USD
Retailer 12$8,517 USD
Retailer 5$9,708 USD
Retailer 18$10,533 USD
Retailer 14$10,989 USD
Retailer 7$12,906 USD
Retailer 13$13,960 USD
Retailer 11$14,523 USD
Retailer 15$15,096 USD
Retailer 2$16,210 USD
Retailer 10$20,858 USD
Retailer 8$23,886 USD
Novita Diamonds$27,063 USD

25 data points across 18 retailers

20 retailers$6,265 USD to $23,886 USD

A
Cheapest Retailer
-
$6,265 USD
A
Retailer 2
-
$6,284 USD
View
A
Retailer 3
-
$6,587 USD
View
Final sale: no returns
Retailer 4
-
$6,720 USD
View
Price last confirmed 33 days ago
A
Retailer 5
-
$6,820 USD
View
Retailer 6
-
$7,392 USD
View
Price last confirmed 33 days ago
A
Retailer 7
-
$8,256 USD
View
A
Retailer 8
-
$8,517 USD
£6,707 GBP
View
A
Retailer 9
-
$9,708 USD
£7,644 GBP
View
A
Retailer 10
-
$10,533 USD
View
A
Retailer 11
-
$10,989 USD
€10,466 EUR
View
A
Retailer 12
-
$12,000 USD
View
B+
Retailer 13
-
$12,906 USD
View
B+
Retailer 14
-
$13,960 USD
£10,992 GBP
View
B+
Retailer 15
-
$14,523 USD
ZAR 234,623 ZAR
View
Retailer 16
-
$15,096 USD
A$23,225 AUD
View
Price last confirmed 9 days ago
B+
Retailer 17
-
$16,210 USD
View
Retailer 18
-
$19,680 USD
View
Price last confirmed 33 days ago
B
Retailer 19
-
$23,886 USD
View
Most Expensive
Novita Diamonds
cert_734536625 · Sep 29
$27,063 USD
A$41,635 AUD
View
Price last confirmed 33 days ago
19 more retailers have this diamond
Prices start from $6,265 USDSave up to $17,621 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
4.00ct Marquise
$6,265 USD