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Round|Lab Grown|IGI

5.28ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG768628557

Shape and cutting style on the report: Round brilliant

Certificate IGI LG768628557

Diamond specifications and retailer prices

From £6,039 GBP
$8,092 USD
As of November 1, 2026
Save £30,663 GBP (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £36,702 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.28ct lab-grown round diamond

This 5.28ct lab-grown round sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768628557 or 768628557. Listed at 14 retailers as of October 31, 2026, with prices from £6,039 to £36,702, a £30,663 spread on the same certified stone. With Clarity lists it at £36,702. 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

5.28
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768628557
Dimensions11.09 × 11.16 × 6.93 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
11.09 mm11.16 mm5.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768628557
Side View
Table 55.0%Crown 35.7°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.3%

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: Nov 1
Current: £8,340 GBP|Low: £6,039 GBP|High: £26,786 GBP|Avg: £11,951 GBP|+0.3%
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
November 1, 2026
Retailer 12£6,039 GBP
Retailer 10£6,803 GBP
Retailer 3£7,098 GBP
Retailer 13£7,384 GBP
Retailer 4£8,313 GBP
Retailer 1£8,340 GBP
Retailer 6£11,336 GBP
Retailer 5£11,797 GBP
Retailer 11£12,427 GBP
Retailer 9£12,679 GBP
Retailer 8£13,803 GBP
Retailer 7£16,792 GBP
Retailer 2£22,248 GBP

42 data points across 13 retailers

14 retailers£6,039 GBP to £36,702 GBP

A
Cheapest Retailer
-
£6,039 GBP
$8,092 USD
Retailer 2
-
£6,803 GBP
$9,115 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
£7,098 GBP
$9,510 USD
View
Retailer 4
-
£7,297 GBP
$9,778 USD
View
Price last confirmed 97 days ago
A
Retailer 5
-
£7,384 GBP
HK$77,300 HKD
View
A
Retailer 6
-
£8,313 GBP
$11,138 USD
View
A
Retailer 7
-
£8,340 GBP
View
A
Retailer 8
-
£11,336 GBP
€14,466 EUR
View
A
Retailer 9
-
£12,427 GBP
$16,651 USD
View
B+
Retailer 10
-
£12,679 GBP
View
B+
Retailer 11
-
£13,803 GBP
ZAR 298,774 ZAR
View
B+
Retailer 12
-
£16,792 GBP
$22,500 USD
View
B
Retailer 13
-
£22,248 GBP
$29,810 USD
View
Most Expensive
B
With Clarity
768628557 · Oct 31
£36,702 GBP
$49,177 USD
View
13 more retailers have this diamond
Prices start from £6,039 GBPSave up to £30,663 GBP

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
5.28ct Round
£6,039 GBP