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Round|Lab Grown|IGI

0.99ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG781618169

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781618169

Diamond specifications and retailer prices

From £135 GBP
$180 USD
As of October 29, 2026
Save £1,086 GBP (89%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,221 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 0.99ct lab-grown round diamond

This 0.99ct lab-grown round sits in the just-under-one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG781618169 or 781618169. Listed at 24 retailers as of October 27, 2026, with prices from £135 to £1,221, a £1,086 spread on the same certified stone. Queensmith lists it at £1,221. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.99
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781618169
Dimensions6.48 × 6.51 × 3.90 mm
L/W Ratio1.00
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
6.48 mm6.51 mm0.99 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781618169
Side View
Table 57.0%Crown 32.9°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.1%

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: £301 GBP|Low: £130 GBP|High: £795 GBP|Avg: £334 GBP|+6.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 11£135 GBP
Retailer 3£152 GBP
Retailer 4£157 GBP
Retailer 12£227 GBP
Retailer 1£301 GBP
Retailer 6£304 GBP
Retailer 5£311 GBP
Retailer 2£347 GBP
Retailer 7£419 GBP
Retailer 10£427 GBP
Retailer 9£676 GBP
Retailer 8£787 GBP

42 data points across 12 retailers

24 retailers£135 GBP to £1,221 GBP

A
Cheapest Retailer
-
£135 GBP
$180 USD
A
Retailer 2
-
£152 GBP
$202 USD
View
Final sale: no returns
A
Retailer 3
-
£157 GBP
$209 USD
View
A
Retailer 4
-
£168 GBP
$224 USD
View
A
Retailer 5
-
£168 GBP
$224 USD
View
A
Retailer 6
-
£192 GBP
HK$2,000 HKD
View
A
Retailer 7
-
£227 GBP
$302 USD
View
A
Retailer 8
-
£260 GBP
$346 USD
View
A
Retailer 9
-
£301 GBP
View
A
Retailer 10
-
£304 GBP
ZAR 6,534 ZAR
View
A
Retailer 11
-
£311 GBP
€395 EUR
View
B+
Retailer 12
-
£347 GBP
$462 USD
View
B+
Retailer 13
-
£419 GBP
A$859 AUD
View
B+
Retailer 14
-
£427 GBP
$568 USD
View
B+
Retailer 15
-
£458 GBP
SGD 825 SGD
View
Retailer 16
-
£510 GBP
$679 USD
View
Price last confirmed 50 days ago
Retailer 17
-
£517 GBP
$688 USD
View
Price last confirmed 38 days ago
B
Retailer 18
-
£540 GBP
$719 USD
View
B
Retailer 19
-
£559 GBP
$745 USD
View
B
Retailer 20
-
£581 GBP
$774 USD
View
Retailer 21
-
£676 GBP
$900 USD
View
Price last confirmed 13 days ago
B
Retailer 22
-
£787 GBP
View
B
Retailer 23
-
£850 GBP
$1,131 USD
View
Most Expensive
B
Queensmith
LG781618169 · Oct 27
£1,221 GBP
View
23 more retailers have this diamond
Prices start from £135 GBPSave up to £1,086 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
0.99ct Round
£135 GBP