Round|Lab Grown|GIA

5.51ct D IF Round Lab Grown Diamond

EX • D/IF • GIA 5516600977

Certificate GIA 5516600977

Diamond specifications and retailer prices

From $17,178 USD
As of November 1, 2026
Save $36,556 USD (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $53,734 USD at Frank Darling · As of October 31, 2026
View at Frank Darling

About this 5.51ct lab-grown round diamond

This 5.51ct lab-grown round sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 5516600977. Listed at 15 retailers as of October 31, 2026, with prices from $17,178 to $53,734, a $36,556 spread on the same certified stone. Frank Darling lists it at $53,734. 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

5.51
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 5516600977
Dimensions11.38 × 11.34 × 6.95 mm
L/W Ratio1.00
Top View
11.38 mm11.34 mm5.51 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5516600977
Side View
Table 57.0%Crown 34°Girdle: ThickPavilion 40.8°Culet: NoneDepth 61.2%

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: Nov 1
Current: $53,734 USD|Low: $13,690 USD|High: $80,130 USD|Avg: $31,493 USD|+6.9%
Frank Darling
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
November 1, 2026
Retailer 7$14,945 USD
Retailer 5$17,178 USD
Retailer 15$17,581 USD
Retailer 13$17,591 USD
Retailer 8$19,708 USD
Retailer 14$19,917 USD
Retailer 11$20,614 USD
Retailer 4$22,481 USD
Retailer 6$33,190 USD
Retailer 2$33,764 USD
Retailer 9$35,110 USD
Retailer 10$40,845 USD
Retailer 3$40,936 USD
Frank Darling$53,734 USD
Retailer 12$76,960 USD

31 data points across 15 retailers

15 retailers$17,178 USD to $53,734 USD

Retailer 1
-
$14,945 USD
Price last confirmed 14 days ago
A
Retailer 2
-
$17,178 USD
View
A
Retailer 3
-
$17,581 USD
View
A
Retailer 4
-
$17,591 USD
View
B+
Retailer 5
-
$19,708 USD
View
B+
Retailer 6
-
$19,917 USD
View
B+
Retailer 7
-
$20,614 USD
View
B+
Retailer 8
-
$22,481 USD
View
Final sale: no returns
B+
Retailer 9
-
$33,190 USD
View
B+
Retailer 10
-
$33,764 USD
£26,586 GBP
View
B+
Retailer 11
-
$35,110 USD
View
B+
Retailer 12
-
$40,845 USD
€38,900 EUR
View
B
Retailer 13
-
$40,936 USD
View
Most Expensive
B
Frank Darling
SP-00977GR · Oct 31
$53,734 USD
View
13 more retailers have this diamond
Prices start from $17,178 USDSave up to $36,556 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
5.51ct Round
$17,178 USD