Radiant|Lab Grown|IGI

3.51ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG700513993

Certificate IGI LG700513993

Diamond specifications and retailer prices

From $2,684 USD
Save $13,106 USD (83%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $15,790 USD at Brilliant Earth
View at Brilliant Earth

About this 3.51ct lab-grown radiant diamond

This 3.51ct lab-grown radiant 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 LG700513993 or 700513993. Listed at 27 retailers, with prices from $2,684 to $15,790 at Brilliant Earth, a $13,106 spread on the same certified stone. 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

3.51
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.4°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700513993
Dimensions10.68 × 7.62 × 5.04 mm
L/W Ratio1.40
Culet sizePointed
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
10.68 mm7.62 mm3.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700513993
Side View
Table 61.0%Crown 42.4°Girdle: MediumPavilion 33.8°Culet: NoneDepth 66.1%

Caratlytics Score

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

Price History

Last verified: Sep 30
Current: $15,790 USD|Low: $2,353 USD|High: $15,840 USD|Avg: $6,966 USD|-0.3%
Brilliant Earth
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
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 1, 2026
Retailer 2$3,006 USD
Retailer 5$3,147 USD
Retailer 4$3,275 USD
Retailer 10$3,770 USD
Retailer 17$3,814 USD
Retailer 9$4,149 USD
Retailer 18$4,294 USD
Retailer 19$4,772 USD
Retailer 6$4,873 USD
Retailer 8$5,364 USD
Retailer 22$6,495 USD
Retailer 21$7,038 USD
Retailer 20$7,099 USD
Retailer 15$8,185 USD
Retailer 13$8,437 USD
Retailer 14$8,492 USD
Retailer 16$8,744 USD
Retailer 11$9,120 USD
Retailer 7$10,855 USD
Retailer 12$11,039 USD
Retailer 3$11,846 USD
Brilliant Earth$15,790 USD

41 data points across 22 retailers

27 retailers$2,684 USD to $15,790 USD

A
Cheapest Retailer
-
$2,684 USD
A
Retailer 2
-
$2,920 USD
View
A
Retailer 3
-
$3,006 USD
View
A
Retailer 4
-
$3,071 USD
View
A
Retailer 5
-
$3,147 USD
View
A
Retailer 6
-
$3,275 USD
View
A
Retailer 7
-
$3,770 USD
View
A
Retailer 8
-
$3,814 USD
HK$29,800 HKD
View
A
Retailer 9
-
$4,149 USD
View
A
Retailer 10
-
$4,280 USD
View
A
Retailer 11
-
$4,304 USD
£3,389 GBP
View
A
Retailer 12
-
$4,622 USD
£3,640 GBP
View
Price last confirmed 21 days ago
A
Retailer 13
-
$4,772 USD
View
A
Retailer 14
-
$4,873 USD
€4,641 EUR
View
B+
Retailer 15
-
$5,364 USD
£4,224 GBP
View
B+
Retailer 16
-
$6,495 USD
View
B+
Retailer 17
-
$7,038 USD
A$10,828 AUD
View
B+
Retailer 18
-
$7,099 USD
ZAR 114,679 ZAR
View
B+
Retailer 19
-
$8,185 USD
View
B+
Retailer 20
-
$8,437 USD
£6,643 GBP
View
B+
Retailer 21
-
$8,492 USD
View
B
Retailer 22
-
$8,744 USD
A$13,453 AUD
View
B+
Retailer 23
-
$9,120 USD
View
B
Retailer 24
-
$10,855 USD
View
B
Retailer 25
-
$11,039 USD
SGD 14,918 SGD
View
B
Retailer 26
-
$12,088 USD
View
Most Expensive
B
Brilliant Earth
14915692A · Sep 29
$15,790 USD
View
26 more retailers have this diamond
Prices start from $2,684 USDSave up to $13,106 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.

A
3.51ct Radiant
$2,684 USD