Radiant|Lab Grown|IGI

1.69ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG818681523

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG818681523

Diamond specifications and retailer prices

From $860 USD
As of October 29, 2026
Save $4,260 USD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,120 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.69ct lab-grown radiant diamond

This 1.69ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818681523 or 818681523. Listed at 13 retailers as of October 29, 2026, with prices from $860 to $5,120, a $4,260 spread on the same certified stone. Do Amore Diamonds lists it at $5,120. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.69
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.3°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818681523
Dimensions8.40 × 5.99 × 3.85 mm
L/W Ratio1.40
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.40 mm5.99 mm1.69 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818681523
Side View
Table 60.0%Crown 41.3°Girdle: Slightly ThickPavilion 33.9°Culet: NoneDepth 64.3%

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 29
Current: $5,120 USD|Low: $785 USD|High: $5,580 USD|Avg: $2,569 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 8$860 USD
Retailer 11$1,056 USD
Retailer 9$1,099 USD
Retailer 6$1,225 USD
Retailer 12$1,248 USD
Retailer 10$1,774 USD
Retailer 3$2,496 USD
Retailer 4$2,746 USD
Retailer 5$3,127 USD
Retailer 2$3,750 USD
Retailer 7$4,030 USD
Do Amore Diamonds$5,120 USD

30 data points across 12 retailers

13 retailers$860 USD to $5,120 USD

Retailer 1
-
$622 USD
Price last confirmed 13 days ago
Retailer 2
-
$696 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$860 USD
View
A
Retailer 4
-
$1,056 USD
View
A
Retailer 5
-
$1,099 USD
View
A
Retailer 6
-
$1,102 USD
View
B+
Retailer 7
-
$1,774 USD
View
Retailer 8
-
$2,028 USD
View
Price last confirmed 14 days ago
Retailer 9
-
$2,496 USD
View
Price last confirmed 14 days ago
B
Retailer 10
-
$3,127 USD
£2,462 GBP
View
B
Retailer 11
-
$3,750 USD
View
B
Retailer 12
-
$4,030 USD
View
Most Expensive
B
Do Amore Diamonds
27-BD2841531 · Oct 29
$5,120 USD
View
12 more retailers have this diamond
Prices start from $860 USDSave up to $4,260 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
1.69ct Radiant
$860 USD