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Oval|Lab Grown|IGI

5.31ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG628448120

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG628448120

Diamond specifications and retailer prices

From £5,870 GBP
$7,865 USD
As of October 29, 2026
Save £30,760 GBP (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £36,630 GBP at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 5.31ct lab-grown oval diamond

This 5.31ct lab-grown oval 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 LG628448120 or 628448120. Listed at 16 retailers as of October 29, 2026, with prices from £5,870 to £36,630, a £30,760 spread on the same certified stone. Do Amore Diamonds lists it at £36,630. 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

5.31
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628448120
Dimensions13.44 × 9.63 × 6.26 mm
L/W Ratio1.40
Girdle conditionFaceted
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
13.44 mm9.63 mm5.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628448120
Side View
Table 57.0%Crown 36.7°Girdle: STK-THKPavilion 40.5°Culet: NoneDepth 65.0%

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: £36,630 GBP|Low: £5,870 GBP|High: £41,929 GBP|Avg: £13,008 GBP|-3.9%
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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 13£5,870 GBP
Retailer 15£5,986 GBP
Retailer 6£6,104 GBP
Retailer 5£6,433 GBP
Retailer 3£6,758 GBP
Retailer 16£7,574 GBP
Retailer 14£7,883 GBP
Retailer 4£8,452 GBP
Retailer 11£8,553 GBP
Retailer 8£10,038 GBP
Retailer 9£12,158 GBP
Retailer 2£13,257 GBP
Retailer 10£13,757 GBP
Retailer 7£18,960 GBP
Retailer 12£21,390 GBP
Do Amore Diamonds£36,630 GBP

37 data points across 16 retailers

16 retailers£5,870 GBP to £36,630 GBP

A
Cheapest Retailer
-
£5,870 GBP
$7,865 USD
A
Retailer 2
-
£5,986 GBP
$8,020 USD
View
A
Retailer 3
-
£6,104 GBP
$8,179 USD
View
A
Retailer 4
-
£6,433 GBP
$8,619 USD
View
A
Retailer 5
-
£6,758 GBP
$9,055 USD
View
A
Retailer 6
-
£7,574 GBP
$10,148 USD
View
A
Retailer 7
-
£7,883 GBP
$10,562 USD
View
A
Retailer 8
-
£8,452 GBP
$11,325 USD
View
A
Retailer 9
-
£8,553 GBP
$11,460 USD
View
A
Retailer 10
-
£10,038 GBP
$13,450 USD
View
Final sale: no returns
A
Retailer 11
-
£12,158 GBP
$16,290 USD
View
B+
Retailer 12
-
£13,257 GBP
€16,917 EUR
View
B+
Retailer 13
-
£13,757 GBP
View
B+
Retailer 14
-
£18,960 GBP
$25,405 USD
View
B
Retailer 15
-
£21,390 GBP
$28,660 USD
View
Most Expensive
B
Do Amore Diamonds
27-73ABECFF9 · Nov 1
£36,630 GBP
$49,080 USD
View
15 more retailers have this diamond
Prices start from £5,870 GBPSave up to £30,760 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
5.31ct Oval
£5,870 GBP