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Marquise|Lab Grown|IGI

3.70ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG797604252

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG797604252

Diamond specifications and retailer prices

From $5,797 USD
As of October 31, 2026
Save $16,638 USD (74%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $22,435 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 3.7ct lab-grown marquise diamond

This 3.7ct 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 LG797604252 or 797604252. Listed at 13 retailers as of October 31, 2026, with prices from $5,797 to $22,435, a $16,638 spread on the same certified stone. Taylor and Hart lists it at $22,435. 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

3.70
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797604252
Dimensions15.32 × 7.81 × 5.13 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.32 mm7.81 mm3.70 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797604252
Side View
Table 61.0%Crown 35.1°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 65.7%

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 31
Current: $6,936 USD|Low: $5,797 USD|High: $25,886 USD|Avg: $12,646 USD|-26.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Taylor and Hart
November 2, 2026
Retailer 3$5,797 USD
Retailer 2$6,330 USD
Retailer 1$6,936 USD
Retailer 11$7,146 USD
Retailer 9$9,300 USD
Retailer 8$10,166 USD
Retailer 4$10,560 USD
Retailer 10$11,100 USD
Retailer 5$12,880 USD
Retailer 7$14,698 USD
Retailer 6$20,363 USD
Taylor and Hart$22,435 USD

40 data points across 12 retailers

13 retailers$5,797 USD to $22,435 USD

A
Cheapest Retailer
-
$5,797 USD
Retailer 2
-
$6,330 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$6,936 USD
£5,461 GBP
View
A
Retailer 4
-
$7,146 USD
View
Retailer 5
-
$8,733 USD
View
Price last confirmed 84 days ago
B+
Retailer 6
-
$9,300 USD
View
B+
Retailer 7
-
$10,166 USD
€9,682 EUR
View
B+
Retailer 8
-
$10,560 USD
View
B+
Retailer 9
-
$11,100 USD
View
B+
Retailer 10
-
$12,880 USD
£10,142 GBP
View
B+
Retailer 11
-
$14,698 USD
ZAR 237,440 ZAR
View
B
Retailer 12
-
$20,363 USD
A$31,328 AUD
View
Most Expensive
B
Taylor and Hart
J6ZEMBB · Oct 31
$22,435 USD
View
12 more retailers have this diamond
Prices start from $5,797 USDSave up to $16,638 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
3.70ct Marquise
$5,797 USD