CaratHunter
Plans
Marquise|Lab Grown|IGI

3.70ct D IF Marquise Lab Grown Diamond

VG • D/IF • IGI LG807666110

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG807666110

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)
17 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 very-good cut grade and certified by IGI LG807666110 or 807666110. Listed at 17 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. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.70
Carat
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807666110
Dimensions15.31 × 7.78 × 5.13 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.31 mm7.78 mm3.70 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807666110
Side View
Table 61.0%Crown 35°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 65.9%

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: $8,122 USD|Low: $4,420 USD|High: $24,007 USD|Avg: $11,229 USD|-5.5%
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
November 2, 2026
Retailer 10$4,420 USD
Retailer 18$5,797 USD
Retailer 2$5,851 USD
Retailer 6$6,111 USD
Retailer 4$6,340 USD
Retailer 9$6,909 USD
Retailer 17$7,158 USD
Retailer 1$8,122 USD
Retailer 5$8,992 USD
Retailer 3$9,777 USD
Retailer 15$10,166 USD
Retailer 16$11,100 USD
Retailer 13$11,680 USD
Retailer 11$12,880 USD
Retailer 14$14,698 USD
Retailer 12$14,700 USD
Retailer 8$20,029 USD
Retailer 7$21,500 USD
Taylor and Hart$22,435 USD

27 data points across 19 retailers

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

A
Cheapest Retailer
-
$5,797 USD
A
Retailer 2
-
$5,851 USD
View
A
Retailer 3
-
$6,111 USD
View
Final sale: no returns
A
Retailer 4
-
$6,340 USD
View
B+
Retailer 5
-
$7,158 USD
View
B+
Retailer 6
-
$8,122 USD
£6,395 GBP
View
B+
Retailer 7
-
$8,992 USD
£7,080 GBP
View
B+
Retailer 8
-
$9,777 USD
View
B+
Retailer 9
-
$10,166 USD
€9,682 EUR
View
B+
Retailer 10
-
$11,100 USD
View
B
Retailer 11
-
$11,680 USD
View
B
Retailer 12
-
$12,880 USD
£10,142 GBP
View
B
Retailer 13
-
$14,698 USD
ZAR 237,440 ZAR
View
B
Retailer 14
-
$14,700 USD
A$22,615 AUD
View
Retailer 15
-
$16,750 USD
View
Price last confirmed 34 days ago
Retailer 16
-
$21,500 USD
A$33,077 AUD
View
Price last confirmed 34 days ago
Most Expensive
B
Taylor and Hart
SBV6H6C · Oct 31
$22,435 USD
View
16 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