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Marquise|Lab Grown|IGI

5.65ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG677525269

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG677525269

Diamond specifications and retailer prices

From $738 USD
As of November 2, 2026
Save $4,967 USD (87%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,705 USD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 5.65ct lab-grown marquise diamond

This 5.65ct lab-grown marquise sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG677525269 or 677525269. Listed at 14 retailers as of October 28, 2026, with prices from $738 to $5,705, a $4,967 spread on the same certified stone. Rare Carat lists it at $5,705. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.65
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677525269
Dimensions18.06 × 9.20 × 5.94 mm
L/W Ratio1.96
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.06 mm9.20 mm5.65 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677525269
Side View
Table 60.0%Crown 37.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $5,705 USD|Low: $738 USD|High: $9,150 USD|Avg: $2,589 USD
Rare Carat
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
November 2, 2026
Retailer 13$738 USD
Retailer 6$803 USD
Retailer 14$857 USD
Retailer 2$958 USD
Retailer 17$1,011 USD
Retailer 15$1,035 USD
Retailer 16$1,274 USD
Retailer 10$1,375 USD
Retailer 5$1,388 USD
Retailer 7$1,512 USD
Retailer 12$2,110 USD
Retailer 3$2,381 USD
Retailer 4$2,408 USD
Retailer 11$3,364 USD
Rare Carat$5,705 USD
Retailer 8$6,432 USD
Retailer 9$9,150 USD

6 data points across 17 retailers

14 retailers$738 USD to $5,705 USD

A
Cheapest Retailer
-
$738 USD
A
Retailer 2
-
$803 USD
View
A
Retailer 3
-
$857 USD
View
A
Retailer 4
-
$958 USD
£754 GBP
View
A
Retailer 5
-
$1,011 USD
HK$7,900 HKD
View
A
Retailer 6
-
$1,035 USD
View
A
Retailer 7
-
$1,274 USD
View
A
Retailer 8
-
$1,375 USD
£1,083 GBP
View
B+
Retailer 9
-
$1,388 USD
View
B+
Retailer 10
-
$2,110 USD
View
B
Retailer 11
-
$2,381 USD
View
B
Retailer 12
-
$2,408 USD
View
B
Retailer 13
-
$3,364 USD
£2,649 GBP
View
Most Expensive
B
Rare Carat
KI2695252KF677 · Oct 28
$5,705 USD
View
13 more retailers have this diamond
Prices start from $738 USDSave up to $4,967 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
5.65ct Marquise
$738 USD